diff --git a/.env.template b/.env.template
index 1b691298..d2eb768e 100644
--- a/.env.template
+++ b/.env.template
@@ -373,7 +373,7 @@
 # ROCKET_WORKERS=10
 # ROCKET_TLS={certs="/path/to/certs.pem",key="/path/to/key.pem"}
 
-## Mail specific settings, set SMTP_HOST and SMTP_FROM to enable the mail service.
+## Mail specific settings, set SMTP_FROM and either SMTP_HOST or USE_SENDMAIL to enable the mail service.
 ## To make sure the email links are pointing to the correct host, set the DOMAIN variable.
 ## Note: if SMTP_USERNAME is specified, SMTP_PASSWORD is mandatory
 # SMTP_HOST=smtp.domain.tld
@@ -385,6 +385,11 @@
 # SMTP_PASSWORD=password
 # SMTP_TIMEOUT=15
 
+# Whether to send mail via the `sendmail` command
+# USE_SENDMAIL=false
+# Which sendmail command to use. The one found in the $PATH is used if not specified.
+# SENDMAIL_COMMAND="/path/to/sendmail"
+
 ## Defaults for SSL is "Plain" and "Login" and nothing for Non-SSL connections.
 ## Possible values: ["Plain", "Login", "Xoauth2"].
 ## Multiple options need to be separated by a comma ','.
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a8a68242..0d7abeb7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,16 +1,20 @@
 ---
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.3.0
+    rev: v4.4.0
     hooks:
     - id: check-yaml
     - id: check-json
     - id: check-toml
+    - id: mixed-line-ending
+      args: ["--fix=no"]
     - id: end-of-file-fixer
       exclude: "(.*js$|.*css$)"
     - id: check-case-conflict
     - id: check-merge-conflict
     - id: detect-private-key
+    - id: check-symlinks
+    - id: forbid-submodules
 -   repo: local
     hooks:
     - id: fmt
@@ -36,5 +40,5 @@ repos:
       language: system
       args: ["--features", "sqlite,mysql,postgresql,enable_mimalloc", "--", "-D", "warnings"]
       types_or: [rust, file]
-      files: (Cargo.toml|Cargo.lock|rust-toolchain|.*\.rs$)
+      files: (Cargo.toml|Cargo.lock|rust-toolchain|clippy.toml|.*\.rs$)
       pass_filenames: false
diff --git a/Cargo.lock b/Cargo.lock
index dcff766c..05b535e9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -85,6 +85,17 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "async-channel"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf46fee83e5ccffc220104713af3292ff9bc7c64c7de289f66dae8e38d826833"
+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "futures-core",
+]
+
 [[package]]
 name = "async-compression"
 version = "0.3.15"
@@ -99,6 +110,110 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "async-executor"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17adb73da160dfb475c183343c8cccd80721ea5a605d3eb57125f0a7b7a92d0b"
+dependencies = [
+ "async-lock",
+ "async-task",
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "slab",
+]
+
+[[package]]
+name = "async-global-executor"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
+dependencies = [
+ "async-channel",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "blocking",
+ "futures-lite",
+ "once_cell",
+]
+
+[[package]]
+name = "async-io"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c374dda1ed3e7d8f0d9ba58715f924862c63eae6849c92d3a18e7fbde9e2794"
+dependencies = [
+ "async-lock",
+ "autocfg",
+ "concurrent-queue",
+ "futures-lite",
+ "libc",
+ "log",
+ "parking",
+ "polling",
+ "slab",
+ "socket2",
+ "waker-fn",
+ "windows-sys 0.42.0",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8101efe8695a6c17e02911402145357e718ac92d3ff88ae8419e84b1707b685"
+dependencies = [
+ "event-listener",
+ "futures-lite",
+]
+
+[[package]]
+name = "async-process"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6381ead98388605d0d9ff86371043b5aa922a3905824244de40dc263a14fcba4"
+dependencies = [
+ "async-io",
+ "async-lock",
+ "autocfg",
+ "blocking",
+ "cfg-if",
+ "event-listener",
+ "futures-lite",
+ "libc",
+ "signal-hook",
+ "windows-sys 0.42.0",
+]
+
+[[package]]
+name = "async-std"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"
+dependencies = [
+ "async-channel",
+ "async-global-executor",
+ "async-io",
+ "async-lock",
+ "async-process",
+ "crossbeam-utils",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-lite",
+ "gloo-timers",
+ "kv-log-macro",
+ "log",
+ "memchr",
+ "once_cell",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+ "wasm-bindgen-futures",
+]
+
 [[package]]
 name = "async-stream"
 version = "0.3.3"
@@ -120,11 +235,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "async-task"
+version = "4.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a40729d2133846d9ed0ea60a8b9541bccddab49cd30f0715a1da672fe9a2524"
+
 [[package]]
 name = "async-trait"
-version = "0.1.63"
+version = "0.1.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eff18d764974428cf3a9328e23fc5c986f5fbed46e6cd4cdf42544df5d297ec1"
+checksum = "1cd7fce9ba8c3c042128ce72d8b2ddbf3a05747efb67ea0313c635e10bda47a2"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -146,6 +267,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "debc29dde2e69f9e47506b525f639ed42300fc014a3e007832592448fa8e4599"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -217,6 +344,20 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "blocking"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c67b173a56acffd6d2326fb7ab938ba0b00a71480e14902b2591c87bc5741e8"
+dependencies = [
+ "async-channel",
+ "async-lock",
+ "async-task",
+ "atomic-waker",
+ "fastrand",
+ "futures-lite",
+]
+
 [[package]]
 name = "brotli"
 version = "3.3.4"
@@ -252,9 +393,9 @@ checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "bytes"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfb24e866b15a1af2a1b663f10c6b6b8f397a84aadb828f12e5b289ec23a3a3c"
+checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
 
 [[package]]
 name = "cached"
@@ -296,9 +437,9 @@ checksum = "3a4f925191b4367301851c6d99b09890311d74b0d43f274c0b34c86d308a3663"
 
 [[package]]
 name = "cc"
-version = "1.0.78"
+version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
+checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
 
 [[package]]
 name = "cfg-if"
@@ -361,6 +502,15 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "concurrent-queue"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c278839b831783b70278b14df4d45e1beb1aad306c07bb796637de9a0e323e8e"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "cookie"
 version = "0.16.2"
@@ -476,6 +626,16 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "ctor"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d2301688392eb071b0bf1a37be05c469d3cc4dbbd95df672fe28ab021e6a096"
+dependencies = [
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "ctr"
 version = "0.9.2"
@@ -487,9 +647,9 @@ dependencies = [
 
 [[package]]
 name = "cxx"
-version = "1.0.87"
+version = "1.0.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b61a7545f753a88bcbe0a70de1fcc0221e10bfc752f576754fa91e663db1622e"
+checksum = "90d59d9acd2a682b4e40605a242f6670eaa58c5957471cbf85e8aa6a0b97a5e8"
 dependencies = [
  "cc",
  "cxxbridge-flags",
@@ -499,9 +659,9 @@ dependencies = [
 
 [[package]]
 name = "cxx-build"
-version = "1.0.87"
+version = "1.0.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f464457d494b5ed6905c63b0c4704842aba319084a0a3561cdc1359536b53200"
+checksum = "ebfa40bda659dd5c864e65f4c9a2b0aff19bea56b017b9b77c73d3766a453a38"
 dependencies = [
  "cc",
  "codespan-reporting",
@@ -514,15 +674,15 @@ dependencies = [
 
 [[package]]
 name = "cxxbridge-flags"
-version = "1.0.87"
+version = "1.0.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43c7119ce3a3701ed81aca8410b9acf6fc399d2629d057b87e2efa4e63a3aaea"
+checksum = "457ce6757c5c70dc6ecdbda6925b958aae7f959bda7d8fb9bde889e34a09dc03"
 
 [[package]]
 name = "cxxbridge-macro"
-version = "1.0.87"
+version = "1.0.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65e07508b90551e610910fa648a1878991d367064997a596135b86df30daf07e"
+checksum = "ebf883b7aacd7b2aeb2a7b338648ee19f57c140d4ee8e52c68979c6b2f7f2263"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -531,9 +691,9 @@ dependencies = [
 
 [[package]]
 name = "darling"
-version = "0.14.2"
+version = "0.14.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0dd3cd20dc6b5a876612a6e5accfe7f3dd883db6d07acfbf14c128f61550dfa"
+checksum = "c0808e1bd8671fb44a113a14e13497557533369847788fa2ae912b6ebfce9fa8"
 dependencies = [
  "darling_core",
  "darling_macro",
@@ -541,9 +701,9 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.14.2"
+version = "0.14.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a784d2ccaf7c98501746bf0be29b2022ba41fd62a2e622af997a03e9f972859f"
+checksum = "001d80444f28e193f30c2f293455da62dcf9a6b29918a4253152ae2b1de592cb"
 dependencies = [
  "fnv",
  "ident_case",
@@ -555,9 +715,9 @@ dependencies = [
 
 [[package]]
 name = "darling_macro"
-version = "0.14.2"
+version = "0.14.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7618812407e9402654622dd402b0a89dff9ba93badd6540781526117b92aab7e"
+checksum = "b36230598a2d5de7ec1c6f51f72d8a99a9208daff41de2084d06e3fd3ea56685"
 dependencies = [
  "darling_core",
  "quote",
@@ -693,17 +853,17 @@ checksum = "03d8c417d7a8cb362e0c37e5d815f5eb7c37f79ff93707329d5a194e42e54ca0"
 
 [[package]]
 name = "either"
-version = "1.8.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
+checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
 
 [[package]]
 name = "email-encoding"
-version = "0.1.3"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34dd14c63662e0206599796cd5e1ad0268ab2b9d19b868d6050d688eba2bbf98"
+checksum = "dbfb21b9878cf7a348dcb8559109aabc0ec40d69924bd706fa5149846c4fef75"
 dependencies = [
- "base64 0.13.1",
+ "base64 0.21.0",
  "memchr",
 ]
 
@@ -718,9 +878,9 @@ dependencies = [
 
 [[package]]
 name = "encoding_rs"
-version = "0.8.31"
+version = "0.8.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9852635589dc9f9ea1b6fe9f05b50ef208c85c834a562f0c6abb1c475736ec2b"
+checksum = "071a31f4ee85403370b58aca746f01041ede6f0da2730960ad001edc2b71b394"
 dependencies = [
  "cfg-if",
 ]
@@ -746,6 +906,12 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "event-listener"
+version = "2.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"
+
 [[package]]
 name = "fastrand"
 version = "1.8.0"
@@ -821,9 +987,9 @@ dependencies = [
 
 [[package]]
 name = "futures"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38390104763dc37a5145a53c29c63c1290b5d316d6086ec32c293f6736051bb0"
+checksum = "13e2792b0ff0340399d58445b88fd9770e3489eff258a4cbc1523418f12abf84"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -836,9 +1002,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52ba265a92256105f45b719605a571ffe2d1f0fea3807304b522c1d778f79eed"
+checksum = "2e5317663a9089767a1ec00a487df42e0ca174b61b4483213ac24448e4664df5"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -846,15 +1012,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04909a7a7e4633ae6c4a9ab280aeb86da1236243a77b694a49eacd659a4bd3ac"
+checksum = "ec90ff4d0fe1f57d600049061dc6bb68ed03c7d2fbd697274c41805dcb3f8608"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7acc85df6714c176ab5edf386123fafe217be88c0840ec11f199441134a074e2"
+checksum = "e8de0a35a6ab97ec8869e32a2473f4b1324459e14c29275d14b10cb1fd19b50e"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -863,15 +1029,30 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00f5fb52a06bdcadeb54e8d3671f8888a39697dcb0b81b23b55174030427f4eb"
+checksum = "bfb8371b6fb2aeb2d280374607aeabfc99d95c72edfe51692e42d3d7f0d08531"
+
+[[package]]
+name = "futures-lite"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7694489acd39452c77daa48516b894c153f192c3578d5a839b62c58099fcbf48"
+dependencies = [
+ "fastrand",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite",
+ "waker-fn",
+]
 
 [[package]]
 name = "futures-macro"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdfb8ce053d86b91919aad980c220b1fb8401a9394410e1c289ed7e66b61835d"
+checksum = "95a73af87da33b5acf53acfebdc339fe592ecf5357ac7c0a7734ab9d8c876a70"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -880,15 +1061,15 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39c15cf1a4aa79df40f1bb462fb39676d0ad9e366c2a33b590d7c66f4f81fcf9"
+checksum = "f310820bb3e8cfd46c80db4d7fb8353e15dfff853a127158425f31e0be6c8364"
 
 [[package]]
 name = "futures-task"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ffb393ac5d9a6eaa9d3fdf37ae2776656b706e200c8e16b1bdb227f5198e6ea"
+checksum = "dcf79a1bf610b10f42aea489289c5a2c478a786509693b80cd39c44ccd936366"
 
 [[package]]
 name = "futures-timer"
@@ -898,9 +1079,9 @@ checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
 
 [[package]]
 name = "futures-util"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "197676987abd2f9cadff84926f410af1c183608d36641465df73ae8211dc65d6"
+checksum = "9c1d6de3acfef38d2be4b1f543f553131788603495be83da675e180c8d6b7bd1"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -970,6 +1151,18 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 
+[[package]]
+name = "gloo-timers"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b995a66bb87bebce9a0f4a95aed01daca4872c050bfcb21653361c03bc35e5c"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "governor"
 version = "0.5.1"
@@ -1042,9 +1235,9 @@ checksum = "43a3c133739dddd0d2990f9a4bdf8eb4b21ef50e4851ca85ab661199821d510e"
 
 [[package]]
 name = "heck"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "hermit-abi"
@@ -1138,9 +1331,9 @@ checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
 
 [[package]]
 name = "hyper"
-version = "0.14.23"
+version = "0.14.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "034711faac9d2166cb1baf1a2fb0b60b1f277f8492fd72176c17f3515e1abd3c"
+checksum = "5e011372fa0b68db8350aa7a248930ecc7839bf46d8485577d69f117a75f164c"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -1291,9 +1484,9 @@ checksum = "47f142fe24a9c9944451e8349de0a56af5f3e7226dc46f3ed4d4ecc0b85af75e"
 
 [[package]]
 name = "job_scheduler_ng"
-version = "2.0.3"
+version = "2.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "830ebb8320dcba49a2d081c36677d500bbbf9ab7e0500ddddadf88252bca3891"
+checksum = "10bbdf445513bbe53f4666218b7057d265c76fa0b30475e121a6bf05dbaacaae"
 dependencies = [
  "chrono",
  "cron",
@@ -1302,9 +1495,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.60"
+version = "0.3.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49409df3e3bf0856b916e2ceaca09ee28e6871cf7d9ce97a692cacfdb2a25a47"
+checksum = "445dde2150c55e483f3d8416706b97ec8e8237c307e5b7b4b8dd15e6af2a0730"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -1323,6 +1516,15 @@ dependencies = [
  "simple_asn1",
 ]
 
+[[package]]
+name = "kv-log-macro"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
+dependencies = [
+ "log",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -1331,12 +1533,13 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "lettre"
-version = "0.10.1"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2eabca5e0b4d0e98e7f2243fb5b7520b6af2b65d8f87bcc86f2c75185a6ff243"
+checksum = "dd84a055407850bcf4791baa77cb4818d37cbb79ad4e60b9b659727b920d2c65"
 dependencies = [
+ "async-std",
  "async-trait",
- "base64 0.13.1",
+ "base64 0.21.0",
  "email-encoding",
  "email_address",
  "fastrand",
@@ -1344,7 +1547,7 @@ dependencies = [
  "futures-util",
  "hostname",
  "httpdate",
- "idna 0.2.3",
+ "idna 0.3.0",
  "mime",
  "native-tls",
  "nom",
@@ -1416,6 +1619,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if",
+ "value-bag",
 ]
 
 [[package]]
@@ -1538,7 +1742,7 @@ dependencies = [
  "libc",
  "log",
  "wasi 0.11.0+wasi-snapshot-preview1",
- "windows-sys",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
@@ -1555,7 +1759,7 @@ dependencies = [
  "log",
  "memchr",
  "mime",
- "spin 0.9.4",
+ "spin 0.9.5",
  "tokio",
  "tokio-util",
  "version_check",
@@ -1736,9 +1940,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-src"
-version = "111.24.0+1.1.1s"
+version = "111.25.0+1.1.1t"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3498f259dab01178c6228c6b00dcef0ed2a2d5e20d648c017861227773ea4abd"
+checksum = "3173cd3626c43e3854b1b727422a276e568d9ec5fe8cec197822cf52cfb743d6"
 dependencies = [
  "cc",
 ]
@@ -1763,6 +1967,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "parking"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -1775,15 +1985,15 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.6"
+version = "0.9.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba1ef8814b5c993410bb3adfad7a5ed269563e4a2f90c41f5d85be7fb47133bf"
+checksum = "9069cbb9f99e3a5083476ccb29ceb1de18b9118cafa53e90c9551235de2b9521"
 dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-sys",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
@@ -1841,9 +2051,9 @@ checksum = "478c572c3d73181ff3c2539045f6eb99e5491218eae919370993b890cdbdd98e"
 
 [[package]]
 name = "pest"
-version = "2.5.4"
+version = "2.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ab62d2fa33726dbe6321cc97ef96d8cde531e3eeaf858a058de53a8a6d40d8f"
+checksum = "028accff104c4e513bad663bbcd2ad7cfd5304144404c31ed0a77ac103d00660"
 dependencies = [
  "thiserror",
  "ucd-trie",
@@ -1851,9 +2061,9 @@ dependencies = [
 
 [[package]]
 name = "pest_derive"
-version = "2.5.4"
+version = "2.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8bf026e2d0581559db66d837fe5242320f525d85c76283c61f4d51a1238d65ea"
+checksum = "2ac3922aac69a40733080f53c1ce7f91dcf57e1a5f6c52f421fadec7fbdc4b69"
 dependencies = [
  "pest",
  "pest_generator",
@@ -1861,9 +2071,9 @@ dependencies = [
 
 [[package]]
 name = "pest_generator"
-version = "2.5.4"
+version = "2.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b27bd18aa01d91c8ed2b61ea23406a676b42d82609c6e2581fba42f0c15f17f"
+checksum = "d06646e185566b5961b4058dd107e0a7f56e77c3f484549fb119867773c0f202"
 dependencies = [
  "pest",
  "pest_meta",
@@ -1874,9 +2084,9 @@ dependencies = [
 
 [[package]]
 name = "pest_meta"
-version = "2.5.4"
+version = "2.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f02b677c1859756359fc9983c2e56a0237f18624a3789528804406b7e915e5d"
+checksum = "e6f60b2ba541577e2a0c307c8f39d1439108120eb7903adeb6497fa880c59616"
 dependencies = [
  "once_cell",
  "pest",
@@ -1945,6 +2155,20 @@ version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ac9a59f73473f1b8d852421e59e64809f025994837ef743615c6d0c5b305160"
 
+[[package]]
+name = "polling"
+version = "2.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22122d5ec4f9fe1b3916419b76be1e80bcb93f618d071d2edf841b137b2a2bd6"
+dependencies = [
+ "autocfg",
+ "cfg-if",
+ "libc",
+ "log",
+ "wepoll-ffi",
+ "windows-sys 0.42.0",
+]
+
 [[package]]
 name = "polyval"
 version = "0.6.0"
@@ -1998,9 +2222,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.50"
+version = "1.0.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
+checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
 dependencies = [
  "unicode-ident",
 ]
@@ -2067,9 +2291,9 @@ dependencies = [
 
 [[package]]
 name = "quoted_printable"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20f14e071918cbeefc5edc986a7aa92c425dae244e003a35e1cdddb5ca39b5cb"
+checksum = "a24039f627d8285853cc90dcddf8c1ebfaa91f834566948872b225b9a28ed1b6"
 
 [[package]]
 name = "r2d2"
@@ -2114,9 +2338,9 @@ dependencies = [
 
 [[package]]
 name = "raw-cpuid"
-version = "10.6.0"
+version = "10.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6823ea29436221176fe662da99998ad3b4db2c7f31e7b6f5fe43adccd6320bb"
+checksum = "c307f7aacdbab3f0adee67d52739a1d71112cc068d6fab169ddeb18e48877fad"
 dependencies = [
  "bitflags",
 ]
@@ -2414,7 +2638,7 @@ version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "713cfb06c7059f3588fb8044c0fad1d09e3c01d225e25b9220dbfdcf16dbb1b3"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
@@ -2456,9 +2680,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework"
-version = "2.8.0"
+version = "2.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "645926f31b250a2dca3c232496c2d898d91036e45ca0e97e0e2390c54e11be36"
+checksum = "a332be01508d814fed64bf28f798a146d73792121129962fdf335bb3c49a4254"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -2515,9 +2739,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.91"
+version = "1.0.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877c235533714907a8c2464236f5c4b2a17262ef1bd71f38f35ea592c8da6883"
+checksum = "cad406b69c91885b5107daf2c29572f6c8cdb3c66826821e286c533490c0bc76"
 dependencies = [
  "itoa",
  "ryu",
@@ -2578,11 +2802,21 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "signal-hook"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "732768f1176d21d09e076c23a93123d40bba92d50c4058da34d45c8de8e682b9"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
 [[package]]
 name = "signal-hook-registry"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
+checksum = "d8229b473baa5980ac72ef434c4415e70c4b5e71b423043adb4ba059f89c99a1"
 dependencies = [
  "libc",
 ]
@@ -2638,9 +2872,9 @@ checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
 [[package]]
 name = "spin"
-version = "0.9.4"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f6002a767bff9e83f8eeecf883ecb8011875a21ae8da43bffb817a57e78cc09"
+checksum = "7dccf47db1b41fa1573ed27ccf5e08e3ca771cb994f776668c5ebda893b248fc"
 
 [[package]]
 name = "stable-pattern"
@@ -2741,10 +2975,11 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "1.1.4"
+version = "1.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5516c27b78311c50bf42c071425c560ac799b11c30b31f87e3081965fe5e0180"
+checksum = "3fdd6f064ccff2d6567adcb3873ca630700f00b5ad3f060c25b5dcfd9a4ce152"
 dependencies = [
+ "cfg-if",
  "once_cell",
 ]
 
@@ -2797,15 +3032,15 @@ dependencies = [
 
 [[package]]
 name = "tinyvec_macros"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.24.2"
+version = "1.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "597a12a59981d9e3c38d216785b0c37399f6e415e8d0712047620f189371b0bb"
+checksum = "c8e00990ebabbe4c14c08aca901caed183ecd5c09562a12c824bb53d3c3fd3af"
 dependencies = [
  "autocfg",
  "bytes",
@@ -2818,7 +3053,7 @@ dependencies = [
  "signal-hook-registry",
  "socket2",
  "tokio-macros",
- "windows-sys",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
@@ -2834,9 +3069,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-native-tls"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
 dependencies = [
  "native-tls",
  "tokio",
@@ -2890,9 +3125,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.4"
+version = "0.7.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bb2e075f03b3d66d8d8785356224ba688d2906a371015e225beeb65ca92c740"
+checksum = "5427d89453009325de0d8f342c9490009f76e999cb7672d77e46267448f7e6b2"
 dependencies = [
  "bytes",
  "futures-core",
@@ -3162,9 +3397,9 @@ checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
 
 [[package]]
 name = "uuid"
-version = "1.2.2"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "422ee0de9031b5b948b97a8fc04e3aa35230001a722ddd27943e0be31564ce4c"
+checksum = "1674845326ee10d37ca60470760d4288a6f80f304007d92e5c53bab78c9cfd79"
 dependencies = [
  "getrandom",
 ]
@@ -3175,6 +3410,16 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
 
+[[package]]
+name = "value-bag"
+version = "1.0.0-alpha.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2209b78d1249f7e6f3293657c9779fe31ced465df091bbd433a1cf88e916ec55"
+dependencies = [
+ "ctor",
+ "version_check",
+]
+
 [[package]]
 name = "vaultwarden"
 version = "1.0.0"
@@ -3230,6 +3475,7 @@ dependencies = [
  "url",
  "uuid",
  "webauthn-rs",
+ "which",
  "yubico",
 ]
 
@@ -3245,6 +3491,12 @@ version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
+[[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
 [[package]]
 name = "walkdir"
 version = "2.3.2"
@@ -3280,9 +3532,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.83"
+version = "0.2.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eaf9f5aceeec8be17c128b2e93e031fb8a4d469bb9c4ae2d7dc1888b26887268"
+checksum = "31f8dcbc21f30d9b8f2ea926ecb58f6b91192c17e9d33594b3df58b2007ca53b"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -3290,9 +3542,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.83"
+version = "0.2.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c8ffb332579b0557b52d268b91feab8df3615f265d5270fec2a8c95b17c1142"
+checksum = "95ce90fd5bcc06af55a641a86428ee4229e44e07033963a2290a8e241607ccb9"
 dependencies = [
  "bumpalo",
  "log",
@@ -3305,9 +3557,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.33"
+version = "0.4.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23639446165ca5a5de86ae1d8896b737ae80319560fbaa4c2887b7da6e7ebd7d"
+checksum = "f219e0d211ba40266969f6dbdd90636da12f75bee4fc9d6c23d1260dadb51454"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -3317,9 +3569,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.83"
+version = "0.2.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
+checksum = "4c21f77c0bedc37fd5dc21f897894a5ca01e7bb159884559461862ae90c0b4c5"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3327,9 +3579,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.83"
+version = "0.2.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
+checksum = "2aff81306fcac3c7515ad4e177f521b5c9a15f2b08f4e32d823066102f35a5f6"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3340,9 +3592,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.83"
+version = "0.2.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
+checksum = "0046fef7e28c3804e5e38bfa31ea2a0f73905319b677e57ebe37e49358989b5d"
 
 [[package]]
 name = "wasm-streams"
@@ -3359,9 +3611,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.60"
+version = "0.3.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bcda906d8be16e728fd5adc5b729afad4e444e106ab28cd1c7256e54fa61510f"
+checksum = "e33b99f4b23ba3eec1a53ac264e35a755f00e966e0065077d6027c0f575b0b97"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -3396,6 +3648,26 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "wepoll-ffi"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "which"
+version = "4.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2441c784c52b289a054b7201fc93253e288f094e2f4be9058343127c4226a269"
+dependencies = [
+ "either",
+ "libc",
+ "once_cell",
+]
+
 [[package]]
 name = "widestring"
 version = "0.5.1"
@@ -3461,6 +3733,30 @@ dependencies = [
  "windows_x86_64_msvc 0.42.1",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e2522491fbfcd58cc84d47aeb2958948c4b8982e9a2d8a2a35bbaed431390e7"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc 0.42.1",
+ "windows_i686_gnu 0.42.1",
+ "windows_i686_msvc 0.42.1",
+ "windows_x86_64_gnu 0.42.1",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc 0.42.1",
+]
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.42.1"
diff --git a/Cargo.toml b/Cargo.toml
index c83f8fed..d93c261e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -62,22 +62,24 @@ rocket = { version = "0.5.0-rc.2", features = ["tls", "json"], default-features
 # WebSockets libraries
 tokio-tungstenite = "0.18.0"
 rmpv = "1.0.0" # MessagePack library
+
+# Concurrent HashMap used for WebSocket messaging and favicons
 dashmap = "5.4.0"
 
 # Async futures
-futures = "0.3.25"
-tokio = { version = "1.24.2", features = ["rt-multi-thread", "fs", "io-util", "parking_lot", "time", "signal"] }
+futures = "0.3.26"
+tokio = { version = "1.25.0", features = ["rt-multi-thread", "fs", "io-util", "parking_lot", "time", "signal"] }
 
 # A generic serialization/deserialization framework
 serde = { version = "1.0.152", features = ["derive"] }
-serde_json = "1.0.91"
+serde_json = "1.0.93"
 
 # A safe, extensible ORM and Query builder
 diesel = { version = "2.0.3", features = ["chrono", "r2d2"] }
 diesel_migrations = "2.0.0"
 diesel_logger = { version = "0.2.0", optional = true }
 
-# Bundled SQLite
+# Bundled/Static SQLite
 libsqlite3-sys = { version = "0.25.2", features = ["bundled"], optional = true }
 
 # Crypto-related libraries
@@ -85,7 +87,7 @@ rand = { version = "0.8.5", features = ["small_rng"] }
 ring = "0.16.20"
 
 # UUID generation
-uuid = { version = "1.2.2", features = ["v4"] }
+uuid = { version = "1.3.0", features = ["v4"] }
 
 # Date and time libraries
 chrono = { version = "0.4.23", features = ["clock", "serde"], default-features = false }
@@ -93,7 +95,7 @@ chrono-tz = "0.8.1"
 time = "0.3.17"
 
 # Job scheduler
-job_scheduler_ng = "2.0.3"
+job_scheduler_ng = "2.0.4"
 
 # Data encoding library Hex/Base32/Base64
 data-encoding = "2.3.3"
@@ -110,32 +112,34 @@ yubico = { version = "0.11.0", features = ["online-tokio"], default-features = f
 # WebAuthn libraries
 webauthn-rs = "0.3.2"
 
-# Handling of URL's for WebAuthn
+# Handling of URL's for WebAuthn and favicons
 url = "2.3.1"
 
-# Email librariese-Base, Update crates and small change.
-lettre = { version = "0.10.1", features = ["smtp-transport", "builder", "serde", "tokio1-native-tls", "hostname", "tracing", "tokio1"], default-features = false }
+# Email libraries
+lettre = { version = "0.10.2", features = ["smtp-transport", "sendmail-transport", "builder", "serde", "tokio1-native-tls", "hostname", "tracing", "tokio1"], default-features = false }
 percent-encoding = "2.2.0" # URL encoding library used for URL's in the emails
 email_address = "0.2.4"
 
-# Template library
+# HTML Template library
 handlebars = { version = "4.3.6", features = ["dir_source"] }
 
-# HTTP client
+# HTTP client (Used for favicons, version check, DUO and HIBP API)
 reqwest = { version = "0.11.14", features = ["stream", "json", "gzip", "brotli", "socks", "cookies", "trust-dns"] }
 
-# For favicon extraction from main website
+# Favicon extraction libraries
 html5gum = "0.5.2"
 regex = { version = "1.7.1", features = ["std", "perf", "unicode-perl"], default-features = false }
 data-url = "0.2.0"
-bytes = "1.3.0"
+bytes = "1.4.0"
+
+# Cache function results (Used for version check and favicon fetching)
 cached = "0.42.0"
 
 # Used for custom short lived cookie jar during favicon extraction
 cookie = "0.16.2"
 cookie_store = "0.19.0"
 
-# Used by U2F, JWT and Postgres
+# Used by U2F, JWT and PostgreSQL
 openssl = "0.10.45"
 
 # CLI argument parsing
@@ -151,6 +155,7 @@ semver = "1.0.16"
 # Allow overriding the default memory allocator
 # Mainly used for the musl builds, since the default musl malloc is very slow
 mimalloc = { version = "0.1.34", features = ["secure"], default-features = false, optional = true }
+which = "4.4.0"
 
 # Strip debuginfo from the release builds
 # Also enable thin LTO for some optimizations
diff --git a/README.md b/README.md
index 1201ab2b..2bec51ee 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 📢 Note: This project was known as Bitwarden_RS and has been renamed to separate itself from the official Bitwarden server in the hopes of avoiding confusion and trademark/branding issues. Please see [#1642](https://github.com/dani-garcia/vaultwarden/discussions/1642) for more explanation.
 
 ---
-
+[![Build](https://github.com/dani-garcia/vaultwarden/actions/workflows/build.yml/badge.svg)](https://github.com/dani-garcia/vaultwarden/actions/workflows/build.yml)
 [![Docker Pulls](https://img.shields.io/docker/pulls/vaultwarden/server.svg)](https://hub.docker.com/r/vaultwarden/server)
 [![Dependency Status](https://deps.rs/repo/github/dani-garcia/vaultwarden/status.svg)](https://deps.rs/repo/github/dani-garcia/vaultwarden)
 [![GitHub Release](https://img.shields.io/github/release/dani-garcia/vaultwarden.svg)](https://github.com/dani-garcia/vaultwarden/releases/latest)
diff --git a/docker/Dockerfile.j2 b/docker/Dockerfile.j2
index 22acfdf4..1ee5d71b 100644
--- a/docker/Dockerfile.j2
+++ b/docker/Dockerfile.j2
@@ -3,22 +3,22 @@
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
-{% set build_stage_base_image = "rust:1.66-bullseye" %}
+{% set build_stage_base_image = "rust:1.67-bullseye" %}
 {% if "alpine" in target_file %}
 {%   if "amd64" in target_file %}
-{%     set build_stage_base_image = "blackdex/rust-musl:x86_64-musl-stable-1.66.1" %}
+{%     set build_stage_base_image = "blackdex/rust-musl:x86_64-musl-stable-1.67.0" %}
 {%     set runtime_stage_base_image = "alpine:3.17" %}
 {%     set package_arch_target = "x86_64-unknown-linux-musl" %}
 {%   elif "armv7" in target_file %}
-{%     set build_stage_base_image = "blackdex/rust-musl:armv7-musleabihf-stable-1.66.1" %}
+{%     set build_stage_base_image = "blackdex/rust-musl:armv7-musleabihf-stable-1.67.0" %}
 {%     set runtime_stage_base_image = "balenalib/armv7hf-alpine:3.17" %}
 {%     set package_arch_target = "armv7-unknown-linux-musleabihf" %}
 {%   elif "armv6" in target_file %}
-{%     set build_stage_base_image = "blackdex/rust-musl:arm-musleabi-stable-1.66.1" %}
+{%     set build_stage_base_image = "blackdex/rust-musl:arm-musleabi-stable-1.67.0" %}
 {%     set runtime_stage_base_image = "balenalib/rpi-alpine:3.17" %}
 {%     set package_arch_target = "arm-unknown-linux-musleabi" %}
 {%   elif "arm64" in target_file %}
-{%     set build_stage_base_image = "blackdex/rust-musl:aarch64-musl-stable-1.66.1" %}
+{%     set build_stage_base_image = "blackdex/rust-musl:aarch64-musl-stable-1.67.0" %}
 {%     set runtime_stage_base_image = "balenalib/aarch64-alpine:3.17" %}
 {%     set package_arch_target = "aarch64-unknown-linux-musl" %}
 {%   endif %}
diff --git a/docker/amd64/Dockerfile b/docker/amd64/Dockerfile
index 00983f50..d03c9212 100644
--- a/docker/amd64/Dockerfile
+++ b/docker/amd64/Dockerfile
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/amd64/Dockerfile.alpine b/docker/amd64/Dockerfile.alpine
index cb38bf8b..c1d186b6 100644
--- a/docker/amd64/Dockerfile.alpine
+++ b/docker/amd64/Dockerfile.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:x86_64-musl-stable-1.66.1 as build
+FROM blackdex/rust-musl:x86_64-musl-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/amd64/Dockerfile.buildkit b/docker/amd64/Dockerfile.buildkit
index 8330958e..70bfd104 100644
--- a/docker/amd64/Dockerfile.buildkit
+++ b/docker/amd64/Dockerfile.buildkit
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/amd64/Dockerfile.buildkit.alpine b/docker/amd64/Dockerfile.buildkit.alpine
index eb551e03..cfe691e0 100644
--- a/docker/amd64/Dockerfile.buildkit.alpine
+++ b/docker/amd64/Dockerfile.buildkit.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:x86_64-musl-stable-1.66.1 as build
+FROM blackdex/rust-musl:x86_64-musl-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/arm64/Dockerfile b/docker/arm64/Dockerfile
index 0087b8ea..149ca08a 100644
--- a/docker/arm64/Dockerfile
+++ b/docker/arm64/Dockerfile
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/arm64/Dockerfile.alpine b/docker/arm64/Dockerfile.alpine
index 139d1a31..424e84c3 100644
--- a/docker/arm64/Dockerfile.alpine
+++ b/docker/arm64/Dockerfile.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:aarch64-musl-stable-1.66.1 as build
+FROM blackdex/rust-musl:aarch64-musl-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/arm64/Dockerfile.buildkit b/docker/arm64/Dockerfile.buildkit
index e1f1e0d2..00f39251 100644
--- a/docker/arm64/Dockerfile.buildkit
+++ b/docker/arm64/Dockerfile.buildkit
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/arm64/Dockerfile.buildkit.alpine b/docker/arm64/Dockerfile.buildkit.alpine
index 26d75edc..f4eca052 100644
--- a/docker/arm64/Dockerfile.buildkit.alpine
+++ b/docker/arm64/Dockerfile.buildkit.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:aarch64-musl-stable-1.66.1 as build
+FROM blackdex/rust-musl:aarch64-musl-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv6/Dockerfile b/docker/armv6/Dockerfile
index f90e5c07..ae9da72f 100644
--- a/docker/armv6/Dockerfile
+++ b/docker/armv6/Dockerfile
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv6/Dockerfile.alpine b/docker/armv6/Dockerfile.alpine
index 129f0216..932c41fb 100644
--- a/docker/armv6/Dockerfile.alpine
+++ b/docker/armv6/Dockerfile.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:arm-musleabi-stable-1.66.1 as build
+FROM blackdex/rust-musl:arm-musleabi-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv6/Dockerfile.buildkit b/docker/armv6/Dockerfile.buildkit
index 4fa86cfa..e1c8c83a 100644
--- a/docker/armv6/Dockerfile.buildkit
+++ b/docker/armv6/Dockerfile.buildkit
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv6/Dockerfile.buildkit.alpine b/docker/armv6/Dockerfile.buildkit.alpine
index 10559387..432e5179 100644
--- a/docker/armv6/Dockerfile.buildkit.alpine
+++ b/docker/armv6/Dockerfile.buildkit.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:arm-musleabi-stable-1.66.1 as build
+FROM blackdex/rust-musl:arm-musleabi-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv7/Dockerfile b/docker/armv7/Dockerfile
index bf0e4f01..5707080d 100644
--- a/docker/armv7/Dockerfile
+++ b/docker/armv7/Dockerfile
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv7/Dockerfile.alpine b/docker/armv7/Dockerfile.alpine
index 43d2509c..828305ac 100644
--- a/docker/armv7/Dockerfile.alpine
+++ b/docker/armv7/Dockerfile.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:armv7-musleabihf-stable-1.66.1 as build
+FROM blackdex/rust-musl:armv7-musleabihf-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv7/Dockerfile.buildkit b/docker/armv7/Dockerfile.buildkit
index 07b51478..986edd00 100644
--- a/docker/armv7/Dockerfile.buildkit
+++ b/docker/armv7/Dockerfile.buildkit
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM rust:1.66-bullseye as build
+FROM rust:1.67-bullseye as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/docker/armv7/Dockerfile.buildkit.alpine b/docker/armv7/Dockerfile.buildkit.alpine
index 9a9e1a9b..46deece3 100644
--- a/docker/armv7/Dockerfile.buildkit.alpine
+++ b/docker/armv7/Dockerfile.buildkit.alpine
@@ -27,7 +27,7 @@
 FROM vaultwarden/web-vault@sha256:d5f71fb05c4b87935bf51d84140db0f8716cabfe2974fbee6c0c5ee8cf7dab5a as vault
 
 ########################## BUILD IMAGE  ##########################
-FROM blackdex/rust-musl:armv7-musleabihf-stable-1.66.1 as build
+FROM blackdex/rust-musl:armv7-musleabihf-stable-1.67.0 as build
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
 ENV DEBIAN_FRONTEND=noninteractive \
diff --git a/rust-toolchain b/rust-toolchain
index 0403bed1..65ee0959 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.66.1
+1.67.0
diff --git a/src/config.rs b/src/config.rs
index 61700c8f..fa53c55b 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,3 +1,4 @@
+use std::env::consts::EXE_SUFFIX;
 use std::process::exit;
 use std::sync::RwLock;
 
@@ -614,6 +615,10 @@ make_config! {
     smtp: _enable_smtp {
         /// Enabled
         _enable_smtp:                  bool,   true,   def,     true;
+        /// Use Sendmail |> Whether to send mail via the `sendmail` command
+        use_sendmail:                  bool,   true,   def,     false;
+        /// Sendmail Command |> Which sendmail command to use. The one found in the $PATH is used if not specified.
+        sendmail_command:              String, true,   option;
         /// Host
         smtp_host:                     String, true,   option;
         /// DEPRECATED smtp_ssl |> DEPRECATED - Please use SMTP_SECURITY
@@ -653,7 +658,7 @@ make_config! {
     /// Email 2FA Settings
     email_2fa: _enable_email_2fa {
         /// Enabled |> Disabling will prevent users from setting up new email 2FA and using existing email 2FA configured
-        _enable_email_2fa:      bool,   true,   auto,    |c| c._enable_smtp && c.smtp_host.is_some();
+        _enable_email_2fa:      bool,   true,   auto,    |c| c._enable_smtp && (c.smtp_host.is_some() || c.use_sendmail);
         /// Email token size |> Number of digits in an email 2FA token (min: 6, max: 255). Note that the Bitwarden clients are hardcoded to mention 6 digit codes regardless of this setting.
         email_token_size:       u8,     true,   def,      6;
         /// Token expiration time |> Maximum time in seconds a token is valid. The time the user has to open email client and copy token.
@@ -744,20 +749,51 @@ fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
             ),
         }
 
-        if cfg.smtp_host.is_some() == cfg.smtp_from.is_empty() {
-            err!("Both `SMTP_HOST` and `SMTP_FROM` need to be set for email support")
-        }
+        if cfg.use_sendmail {
+            let command = cfg.sendmail_command.clone().unwrap_or_else(|| format!("sendmail{EXE_SUFFIX}"));
 
-        if cfg.smtp_host.is_some() && !cfg.smtp_from.contains('@') {
-            err!("SMTP_FROM does not contain a mandatory @ sign")
-        }
+            let mut path = std::path::PathBuf::from(&command);
+
+            if !path.is_absolute() {
+                match which::which(&command) {
+                    Ok(result) => path = result,
+                    Err(_) => err!(format!("sendmail command {command:?} not found in $PATH")),
+                }
+            }
 
-        if cfg.smtp_username.is_some() != cfg.smtp_password.is_some() {
-            err!("Both `SMTP_USERNAME` and `SMTP_PASSWORD` need to be set to enable email authentication")
+            match path.metadata() {
+                Err(err) if err.kind() == std::io::ErrorKind::NotFound => {
+                    err!(format!("sendmail command not found at `{path:?}`"))
+                }
+                Err(err) => {
+                    err!(format!("failed to access sendmail command at `{path:?}`: {err}"))
+                }
+                Ok(metadata) => {
+                    if metadata.is_dir() {
+                        err!(format!("sendmail command at `{path:?}` isn't a directory"));
+                    }
+
+                    #[cfg(unix)]
+                    {
+                        use std::os::unix::fs::PermissionsExt;
+                        if !metadata.permissions().mode() & 0o111 != 0 {
+                            err!(format!("sendmail command at `{path:?}` isn't executable"));
+                        }
+                    }
+                }
+            }
+        } else {
+            if cfg.smtp_host.is_some() == cfg.smtp_from.is_empty() {
+                err!("Both `SMTP_HOST` and `SMTP_FROM` need to be set for email support without `USE_SENDMAIL`")
+            }
+
+            if cfg.smtp_username.is_some() != cfg.smtp_password.is_some() {
+                err!("Both `SMTP_USERNAME` and `SMTP_PASSWORD` need to be set to enable email authentication without `USE_SENDMAIL`")
+            }
         }
 
-        if cfg._enable_email_2fa && (!cfg._enable_smtp || cfg.smtp_host.is_none()) {
-            err!("To enable email 2FA, SMTP must be configured")
+        if (cfg.smtp_host.is_some() || cfg.use_sendmail) && !cfg.smtp_from.contains('@') {
+            err!("SMTP_FROM does not contain a mandatory @ sign")
         }
 
         if cfg._enable_email_2fa && cfg.email_token_size < 6 {
@@ -765,6 +801,10 @@ fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
         }
     }
 
+    if cfg._enable_email_2fa && !(cfg.smtp_host.is_some() || cfg.use_sendmail) {
+        err!("To enable email 2FA, a mail transport must be configured")
+    }
+
     // Check if the icon blacklist regex is valid
     if let Some(ref r) = cfg.icon_blacklist_regex {
         let validate_regex = regex::Regex::new(r);
@@ -1045,7 +1085,7 @@ impl Config {
     }
     pub fn mail_enabled(&self) -> bool {
         let inner = &self.inner.read().unwrap().config;
-        inner._enable_smtp && inner.smtp_host.is_some()
+        inner._enable_smtp && (inner.smtp_host.is_some() || inner.use_sendmail)
     }
 
     pub fn get_duo_akey(&self) -> String {
diff --git a/src/mail.rs b/src/mail.rs
index cffa65fb..565a1f2c 100644
--- a/src/mail.rs
+++ b/src/mail.rs
@@ -8,7 +8,7 @@ use lettre::{
     transport::smtp::authentication::{Credentials, Mechanism as SmtpAuthMechanism},
     transport::smtp::client::{Tls, TlsParameters},
     transport::smtp::extension::ClientId,
-    Address, AsyncSmtpTransport, AsyncTransport, Tokio1Executor,
+    Address, AsyncSendmailTransport, AsyncSmtpTransport, AsyncTransport, Tokio1Executor,
 };
 
 use crate::{
@@ -21,7 +21,15 @@ use crate::{
     CONFIG,
 };
 
-fn mailer() -> AsyncSmtpTransport<Tokio1Executor> {
+fn sendmail_transport() -> AsyncSendmailTransport<Tokio1Executor> {
+    if let Some(command) = CONFIG.sendmail_command() {
+        AsyncSendmailTransport::new_with_command(command)
+    } else {
+        AsyncSendmailTransport::new()
+    }
+}
+
+fn smtp_transport() -> AsyncSmtpTransport<Tokio1Executor> {
     use std::time::Duration;
     let host = CONFIG.smtp_host().unwrap();
 
@@ -509,6 +517,58 @@ pub async fn send_admin_reset_password(address: &str, user_name: &str, org_name:
     send_email(address, &subject, body_html, body_text).await
 }
 
+async fn send_with_selected_transport(email: Message) -> EmptyResult {
+    if CONFIG.use_sendmail() {
+        match sendmail_transport().send(email).await {
+            Ok(_) => Ok(()),
+            // Match some common errors and make them more user friendly
+            Err(e) => {
+                if e.is_client() {
+                    debug!("Sendmail client error: {:#?}", e);
+                    err!(format!("Sendmail client error: {e}"));
+                } else if e.is_response() {
+                    debug!("Sendmail response error: {:#?}", e);
+                    err!(format!("Sendmail response error: {e}"));
+                } else {
+                    debug!("Sendmail error: {:#?}", e);
+                    err!(format!("Sendmail error: {e}"));
+                }
+            }
+        }
+    } else {
+        match smtp_transport().send(email).await {
+            Ok(_) => Ok(()),
+            // Match some common errors and make them more user friendly
+            Err(e) => {
+                if e.is_client() {
+                    debug!("SMTP client error: {:#?}", e);
+                    err!(format!("SMTP client error: {e}"));
+                } else if e.is_transient() {
+                    debug!("SMTP 4xx error: {:#?}", e);
+                    err!(format!("SMTP 4xx error: {e}"));
+                } else if e.is_permanent() {
+                    debug!("SMTP 5xx error: {:#?}", e);
+                    let mut msg = e.to_string();
+                    // Add a special check for 535 to add a more descriptive message
+                    if msg.contains("(535)") {
+                        msg = format!("{msg} - Authentication credentials invalid");
+                    }
+                    err!(format!("SMTP 5xx error: {msg}"));
+                } else if e.is_timeout() {
+                    debug!("SMTP timeout error: {:#?}", e);
+                    err!(format!("SMTP timeout error: {e}"));
+                } else if e.is_tls() {
+                    debug!("SMTP encryption error: {:#?}", e);
+                    err!(format!("SMTP encryption error: {e}"));
+                } else {
+                    debug!("SMTP error: {:#?}", e);
+                    err!(format!("SMTP error: {e}"));
+                }
+            }
+        }
+    }
+}
+
 async fn send_email(address: &str, subject: &str, body_html: String, body_text: String) -> EmptyResult {
     let smtp_from = &CONFIG.smtp_from();
 
@@ -538,34 +598,5 @@ async fn send_email(address: &str, subject: &str, body_html: String, body_text:
         .subject(subject)
         .multipart(body)?;
 
-    match mailer().send(email).await {
-        Ok(_) => Ok(()),
-        // Match some common errors and make them more user friendly
-        Err(e) => {
-            if e.is_client() {
-                debug!("SMTP Client error: {:#?}", e);
-                err!(format!("SMTP Client error: {e}"));
-            } else if e.is_transient() {
-                debug!("SMTP 4xx error: {:#?}", e);
-                err!(format!("SMTP 4xx error: {e}"));
-            } else if e.is_permanent() {
-                debug!("SMTP 5xx error: {:#?}", e);
-                let mut msg = e.to_string();
-                // Add a special check for 535 to add a more descriptive message
-                if msg.contains("(535)") {
-                    msg = format!("{msg} - Authentication credentials invalid");
-                }
-                err!(format!("SMTP 5xx error: {msg}"));
-            } else if e.is_timeout() {
-                debug!("SMTP timeout error: {:#?}", e);
-                err!(format!("SMTP timeout error: {e}"));
-            } else if e.is_tls() {
-                debug!("SMTP Encryption error: {:#?}", e);
-                err!(format!("SMTP Encryption error: {e}"));
-            } else {
-                debug!("SMTP {:#?}", e);
-                err!(format!("SMTP {e}"));
-            }
-        }
-    }
+    send_with_selected_transport(email).await
 }