Updated lettre (and other crates) and workflow.

General:
- Updated several dependancies

Lettre:
- Updateded lettere and the workflow
- Changed encoding to base64
- Convert unix newlines to dos newlines for e-mails.
- Created custom e-mail boundary (auto generated could cause errors)

Tested the e-mails sent using several clients (Linux, Windows, MacOS, Web).
Run msglint (https://tools.ietf.org/tools/msglint/) on the generated e-mails until all errors were gone.

Lettre has changed quite some stuff compared between alpha.1 and alpha.2, i haven't noticed any issues sending e-mails during my tests.

Cargo.lock

@@ -146,7 +146,7 @@ dependencies = [
  "libsqlite3-sys",
  "log 0.4.11",
  "multipart",
- "native-tls",
+ "newline-converter",
  "num-derive",
  "num-traits",
  "oath",
@@ -167,7 +167,7 @@ dependencies = [
  "soup",
  "structopt",
  "syslog",
- "time 0.2.16",
+ "time 0.2.18",
  "u2f",
  "uuid",
  "ws",
@@ -205,12 +205,6 @@ dependencies = [
  "safemem",
 ]
 
-[[package]]
-name = "bufstream"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40e38929add23cdf8a366df9b0e088953150724bcbe5fc330b0d8eb3b328eec8"
-
 [[package]]
 name = "bumpalo"
 version = "3.4.0"
@@ -327,6 +321,12 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "const_fn"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce90df4c658c62f12d78f7508cf92f9173e5184a539c10bfe54a3107b3ffd0f2"
+
 [[package]]
 name = "constant_time_eq"
 version = "0.1.5"
@@ -340,7 +340,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0c60ef6d0bbf56ad2674249b6bb74f2c6aeb98b98dd57b5d3e37cace33011d69"
 dependencies = [
  "percent-encoding 2.1.0",
- "time 0.2.16",
+ "time 0.2.18",
 ]
 
 [[package]]
@@ -417,9 +417,9 @@ version = "0.3.0"
 source = "git+https://github.com/SergioBenitez/Devise.git?rev=e58b3ac9a#e58b3ac9afc3b6ff10a8aaf02a3e768a8f530089"
 dependencies = [
  "bitflags",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -445,9 +445,9 @@ version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "45f5098f628d02a7a0f68ddba586fb61e80edec3bdc1be3b921f4ceec60858d3"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -679,9 +679,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0b5a30a4328ab5473878237c447333c093297bded83a4983d10f4deea240d39"
 dependencies = [
  "proc-macro-hack",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -740,9 +740,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.1.14"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
+checksum = "fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6"
 dependencies = [
  "cfg-if",
  "libc",
@@ -797,12 +797,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e91b62f79061a0bc2e046024cb7ba44b08419ed238ecbd9adbd787434b9e8c25"
-dependencies = [
- "autocfg 1.0.1",
-]
+checksum = "00d63df3d41950fb462ed38308eea019113ad1508da725bbedcd0fa5a85ef5f7"
 
 [[package]]
 name = "heck"
@@ -1005,9 +1002,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.5.1"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86b45e59b16c76b11bf9738fd5d38879d3bd28ad292d7b313608becb17ae2df9"
+checksum = "55e2e4c765aa53a0424761bf9f41aa7a6ac1efa87238f59560640e27fca028f2"
 dependencies = [
  "autocfg 1.0.1",
  "hashbrown",
@@ -1062,9 +1059,9 @@ checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
 
 [[package]]
 name = "js-sys"
-version = "0.3.44"
+version = "0.3.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85a7e2c92a4804dd459b86c339278d0fe87cf93757fae222c3fa3ae75458bc73"
+checksum = "ca059e81d9486668f12d455a4ea6daa600bd408134cd17e3d3fb5a32d1f016f8"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -1113,24 +1110,22 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "lettre"
-version = "0.10.0-alpha.1"
+version = "0.10.0-alpha.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "deaf9b74d40fcb52d0f762eb08e45d5152b4db59d29bb73edd4cac7fe796862c"
+checksum = "8ef0e6a22631e37078148cff6ce1ef92984bdc2fbd2cb2cc804836db8196cc57"
 dependencies = [
  "base64 0.12.3",
- "bufstream",
  "hostname",
  "hyperx",
  "idna 0.2.0",
- "line-wrap",
  "mime 0.3.16",
  "native-tls",
  "nom",
  "once_cell",
  "quoted_printable",
+ "rand 0.7.3",
  "regex",
  "serde",
- "textnonce",
  "uuid",
 ]
 
@@ -1149,9 +1144,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.76"
+version = "0.2.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "755456fae044e6fa1ebbbd1b3e902ae19e73097ed4ed87bb79934a867c007bc3"
+checksum = "f2f96b10ec2560088a8e76961b00d47107b3a625fecb76dedb29ee7ccbf98235"
 
 [[package]]
 name = "libsqlite3-sys"
@@ -1164,15 +1159,6 @@ dependencies = [
  "vcpkg",
 ]
 
-[[package]]
-name = "line-wrap"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f30344350a2a51da54c1d53be93fade8a237e545dbcc4bdbe635413f2117cab9"
-dependencies = [
- "safemem",
-]
-
 [[package]]
 name = "lock_api"
 version = "0.4.1"
@@ -1268,9 +1254,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9753f12909fd8d923f75ae5c3258cae1ed3c8ec052e1b38c93c21a6d157f789c"
 dependencies = [
  "migrations_internals",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -1398,9 +1384,9 @@ dependencies = [
 
 [[package]]
 name = "net2"
-version = "0.2.34"
+version = "0.2.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ba7c918ac76704fb42afcbbb43891e72731f3dcca3bef2a19786297baf14af7"
+checksum = "3ebc3ec692ed7c9a255596c67808dee269f64655d8baf7b4f0638e51ba1d6853"
 dependencies = [
  "cfg-if",
  "libc",
@@ -1413,6 +1399,12 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e4a24736216ec316047a1fc4252e27dabb04218aa4a3f37c6e7ddbf1f9782b54"
 
+[[package]]
+name = "newline-converter"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff9ae3574d1a57e937b8789201c223501e8178b4b42849d7b1a40d2cb2592a51"
+
 [[package]]
 name = "nodrop"
 version = "0.1.14"
@@ -1465,9 +1457,9 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6f09b9841adb6b5e1f89ef7087ea636e0fd94b2851f887c1e3eb5d5f8228fab3"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -1707,9 +1699,9 @@ checksum = "99b8db626e31e5b81787b9783425769681b347011cc59471e33ea46d2ea0cf55"
 dependencies = [
  "pest",
  "pest_meta",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -1776,9 +1768,9 @@ version = "0.4.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2c0e815c3ee9a031fdf5af21c10aa17c573c9c6a566328d99e3936c34e36461f"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -1827,9 +1819,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
 dependencies = [
  "proc-macro-error-attr",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
  "version_check 0.9.2",
 ]
 
@@ -1839,7 +1831,7 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
  "version_check 0.9.2",
 ]
@@ -1867,9 +1859,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.19"
+version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04f5f085b5d71e2188cb8271e5da0161ad52c3f227a661a3c135fdf28e258b12"
+checksum = "36e28516df94f3dd551a587da5357459d9b36d945a7c37c3557928c1c2ff2a2c"
 dependencies = [
  "unicode-xid 0.2.1",
 ]
@@ -1901,7 +1893,7 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
 ]
 
 [[package]]
@@ -2208,7 +2200,7 @@ dependencies = [
  "rocket_codegen",
  "rocket_http",
  "state",
- "time 0.2.16",
+ "time 0.2.18",
  "toml",
  "version_check 0.9.2",
  "yansi",
@@ -2254,7 +2246,7 @@ dependencies = [
  "rustls",
  "smallvec 1.4.2",
  "state",
- "time 0.2.16",
+ "time 0.2.18",
  "unicode-xid 0.2.1",
 ]
 
@@ -2388,22 +2380,22 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.115"
+version = "1.0.116"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e54c9a88f2da7238af84b5101443f0c0d0a3bbdc455e34a5c9497b1903ed55d5"
+checksum = "96fe57af81d28386a513cbc6858332abc6117cfdb5999647c6444b8f43a370a5"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.115"
+version = "1.0.116"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "609feed1d0a73cc36a0182a840a9b37b4a82f0b1150369f0536a9e3f2a31dc48"
+checksum = "f630a6370fd8e457873b4bd2ffdae75408bc291ba72be773772a4c2a065d9ae8"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -2513,9 +2505,9 @@ checksum = "fbee7696b84bbf3d89a1c2eccff0850e3047ed46bfcd2e92c29a2d074d57e252"
 
 [[package]]
 name = "socket2"
-version = "0.3.12"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03088793f677dce356f3ccc2edb1b314ad191ab702a5de3faf49304f7e104918"
+checksum = "b1fa70dc5c8104ec096f4fe7ede7a221d35ae13dcd19ba1ad9a81d2cab9a1c44"
 dependencies = [
  "cfg-if",
  "libc",
@@ -2586,11 +2578,11 @@ version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c87a60a40fccc84bef0652345bbbbbe20a605bf5d0ce81719fc476f5c03b50ef"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
  "serde",
  "serde_derive",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -2600,13 +2592,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
 dependencies = [
  "base-x",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
  "serde",
  "serde_derive",
  "serde_json",
  "sha1",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -2638,7 +2630,7 @@ checksum = "f0f45ed1b65bf9a4bf2f7b7dc59212d1926e9eaf00fa998988e420fd124467c6"
 dependencies = [
  "phf_generator",
  "phf_shared",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
  "string_cache_shared",
 ]
@@ -2674,9 +2666,9 @@ checksum = "5e2513111825077552a6751dfad9e11ce0fba07d7276a3943a037d7e93e64c5f"
 dependencies = [
  "heck",
  "proc-macro-error",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -2687,9 +2679,9 @@ checksum = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
 
 [[package]]
 name = "subtle"
-version = "2.2.3"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "502d53007c02d7605a05df1c1a73ee436952781653da5d0bf57ad608f66932c1"
+checksum = "343f3f510c2915908f155e94f17220b19ccfacf2a64a2a5d8004f2c3e311e7fd"
 
 [[package]]
 name = "syn"
@@ -2704,11 +2696,11 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.39"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "891d8d6567fe7c7f8835a3a98af4208f3846fba258c1bc3c31d6e506239f11f9"
+checksum = "963f7d3cc59b59b9325165add223142bbf1df27655d07789f109896d353d8350"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
  "unicode-xid 0.2.1",
 ]
@@ -2750,19 +2742,6 @@ dependencies = [
  "utf-8",
 ]
 
-[[package]]
-name = "textnonce"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acc659075a12c12c07bbb384862c352506707f6597f5b495f65427d08519b617"
-dependencies = [
- "base64 0.12.3",
- "byteorder",
- "chrono",
- "rand 0.7.3",
- "serde",
-]
-
 [[package]]
 name = "textwrap"
 version = "0.11.0"
@@ -2803,11 +2782,11 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.2.16"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a51cadc5b1eec673a685ff7c33192ff7b7603d0b75446fb354939ee615acb15"
+checksum = "12785163ae8a1cbb52a5db39af4a5baabd3fe49f07f76f952f89d7e89e5ce531"
 dependencies = [
- "cfg-if",
+ "const_fn",
  "libc",
  "standback",
  "stdweb",
@@ -2833,10 +2812,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5c3be1edfad6027c69f5491cf4cb310d1a71ecd6af742788c6ff8bced86b8fa"
 dependencies = [
  "proc-macro-hack",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
  "standback",
- "syn 1.0.39",
+ "syn 1.0.40",
 ]
 
 [[package]]
@@ -2915,9 +2894,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.15"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f0e00789804e99b20f12bc7003ca416309d28a6f495d6af58d1e2c2842461b5"
+checksum = "5bcf46c1f1f06aeea2d6b81f3c863d0930a596c86ad1920d4e5bad6dd1d7119a"
 dependencies = [
  "lazy_static",
 ]
@@ -3140,9 +3119,9 @@ checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.67"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0563a9a4b071746dd5aedbc3a28c6fe9be4586fb3fbadb67c400d4f53c6b16c"
+checksum = "1ac64ead5ea5f05873d7c12b545865ca2b8d28adfc50a49b84770a3a97265d42"
 dependencies = [
  "cfg-if",
  "serde",
@@ -3152,24 +3131,24 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.67"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc71e4c5efa60fb9e74160e89b93353bc24059999c0ae0fb03affc39770310b0"
+checksum = "f22b422e2a757c35a73774860af8e112bff612ce6cb604224e8e47641a9e4f68"
 dependencies = [
  "bumpalo",
  "lazy_static",
  "log 0.4.11",
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.17"
+version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95f8d235a77f880bcef268d379810ea6c0af2eacfa90b1ad5af731776e0c4699"
+checksum = "b7866cab0aa01de1edf8b5d7936938a7e397ee50ce24119aef3e1eaa3b6171da"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -3179,9 +3158,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.67"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97c57cefa5fa80e2ba15641578b44d36e7a64279bc5ed43c6dbaf329457a2ed2"
+checksum = "6b13312a745c08c469f0b292dd2fcd6411dba5f7160f593da6ef69b64e407038"
 dependencies = [
  "quote 1.0.7",
  "wasm-bindgen-macro-support",
@@ -3189,28 +3168,28 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.67"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "841a6d1c35c6f596ccea1f82504a192a60378f64b3bb0261904ad8f2f5657556"
+checksum = "f249f06ef7ee334cc3b8ff031bfc11ec99d00f34d86da7498396dc1e3b1498fe"
 dependencies = [
- "proc-macro2 1.0.19",
+ "proc-macro2 1.0.21",
  "quote 1.0.7",
- "syn 1.0.39",
+ "syn 1.0.40",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.67"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93b162580e34310e5931c4b792560108b10fd14d64915d7fff8ff00180e70092"
+checksum = "1d649a3145108d7d3fbcde896a468d1bd636791823c9921135218ad89be08307"
 
 [[package]]
 name = "web-sys"
-version = "0.3.44"
+version = "0.3.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dda38f4e5ca63eda02c059d243aa25b5f35ab98451e518c51612cd0f1bd19a47"
+checksum = "4bf6ef87ad7ae8008e15a355ce696bed26012b7caa21605188cfd8214ab51e2d"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -3334,7 +3313,7 @@ dependencies = [
  "rand 0.6.5",
  "reqwest",
  "sha-1 0.8.2",
- "subtle 2.2.3",
+ "subtle 2.3.0",
  "threadpool",
  "url 1.7.2",
 ]

Cargo.toml

@@ -18,7 +18,7 @@ postgresql = ["diesel/postgres", "diesel_migrations/postgres"]
 sqlite = ["diesel/sqlite", "diesel_migrations/sqlite", "libsqlite3-sys"]
 
 # Enable unstable features, requires nightly
-# Currently only used to enable rusts official ip support 
+# Currently only used to enable rusts official ip support
 unstable = []
 
 [target."cfg(not(windows))".dependencies]
@@ -30,7 +30,7 @@ rocket = { version = "0.5.0-dev", features = ["tls"], default-features = false }
 rocket_contrib = "0.5.0-dev"
 
 # HTTP client
-reqwest = { version = "0.10.7", features = ["blocking", "json"] }
+reqwest = { version = "0.10.8", features = ["blocking", "json"] }
 
 # multipart/form-data support
 multipart = { version = "0.17.0", features = ["server"], default-features = false }
@@ -45,8 +45,8 @@ rmpv = "0.4.5"
 chashmap = "2.2.2"
 
 # A generic serialization/deserialization framework
-serde = "1.0.115"
-serde_derive = "1.0.115"
+serde = "1.0.116"
+serde_derive = "1.0.116"
 serde_json = "1.0.57"
 
 # Logging
@@ -68,9 +68,9 @@ ring = "0.16.15"
 uuid = { version = "0.8.1", features = ["v4"] }
 
 # Date and time libraries
-chrono = "0.4.13"
-chrono-tz = "0.5.2"
-time = "0.2.16"
+chrono = "0.4.15"
+chrono-tz = "0.5.3"
+time = "0.2.18"
 
 # TOTP library
 oath = "0.10.2"
@@ -91,18 +91,18 @@ yubico = { version = "0.9.1", features = ["online-tokio"], default-features = fa
 dotenv = { version = "0.15.0", default-features = false }
 
 # Lazy initialization
-once_cell = "1.4.0"
+once_cell = "1.4.1"
 
 # Numerical libraries
 num-traits = "0.2.12"
-num-derive = "0.3.1"
+num-derive = "0.3.2"
 
 # Email libraries
-lettre = { version = "0.10.0-alpha.1", features = ["smtp-transport", "builder", "serde", "native-tls", "hostname"], default-features = false }
-native-tls = "0.2.4"
+lettre = { version = "0.10.0-alpha.2", features = ["smtp-transport", "builder", "serde", "native-tls", "hostname"], default-features = false }
+newline-converter = "0.1.0"
 
 # Template library
-handlebars = { version = "3.3.0", features = ["dir_source"] }
+handlebars = { version = "3.4.0", features = ["dir_source"] }
 
 # For favicon extraction from main website
 soup = "0.5.0"
@@ -118,7 +118,7 @@ percent-encoding = "2.1.0"
 idna = "0.2.0"
 
 # CLI argument parsing
-structopt = "0.3.16"
+structopt = "0.3.17"
 
 # Logging panics to logfile instead stderr only
 backtrace = "0.3.50"

src/error.rs

@@ -49,7 +49,7 @@ use yubico::yubicoerror::YubicoError as YubiErr;
 use lettre::address::AddressError as AddrErr;
 use lettre::error::Error as LettreErr;
 use lettre::message::mime::FromStrError as FromStrErr;
-use lettre::transport::smtp::error::Error as SmtpErr;
+use lettre::transport::smtp::Error as SmtpErr;
 
 #[derive(Serialize)]
 pub struct Empty {}

src/mail.rs

@@ -2,14 +2,13 @@ use std::{env, str::FromStr};
 
 use chrono::{DateTime, Local};
 use chrono_tz::Tz;
-use native_tls::{Protocol, TlsConnector};
 use percent_encoding::{percent_encode, NON_ALPHANUMERIC};
 
 use lettre::{
     message::{header, Mailbox, Message, MultiPart, SinglePart},
     transport::smtp::authentication::{Credentials, Mechanism as SmtpAuthMechanism},
     transport::smtp::extension::ClientId,
-    Address, SmtpTransport, Tls, TlsParameters, Transport,
+    Address, SmtpTransport, Transport,
 };
 
 use crate::{
@@ -20,28 +19,23 @@ use crate::{
 };
 
 fn mailer() -> SmtpTransport {
+    use std::time::Duration;
     let host = CONFIG.smtp_host().unwrap();
 
-    let client_security = if CONFIG.smtp_ssl() {
-        let tls = TlsConnector::builder()
-            .min_protocol_version(Some(Protocol::Tlsv11))
-            .build()
-            .unwrap();
-
-        let params = TlsParameters::new(host.clone(), tls);
-
+    // Determine security
+    let smtp_client = if CONFIG.smtp_ssl() {
         if CONFIG.smtp_explicit_tls() {
-            Tls::Wrapper(params)
+            SmtpTransport::relay(host.as_str())
         } else {
-            Tls::Required(params)
+            SmtpTransport::starttls_relay(host.as_str())
         }
     } else {
-        Tls::None
+        Ok(SmtpTransport::builder_dangerous(host.as_str()))
     };
 
-    use std::time::Duration;
-
-    let smtp_client = SmtpTransport::builder(host).port(CONFIG.smtp_port()).tls(client_security);
+    let smtp_client = smtp_client.unwrap()
+        .port(CONFIG.smtp_port())
+        .timeout(Some(Duration::from_secs(CONFIG.smtp_timeout())));
 
     let smtp_client = match (CONFIG.smtp_username(), CONFIG.smtp_password()) {
         (Some(user), Some(pass)) => smtp_client.credentials(Credentials::new(user, pass)),
@@ -49,7 +43,7 @@ fn mailer() -> SmtpTransport {
     };
 
     let smtp_client = match CONFIG.helo_name() {
-        Some(helo_name) => smtp_client.hello_name(ClientId::new(helo_name)),
+        Some(helo_name) => smtp_client.hello_name(ClientId::Domain(helo_name)),
         None => smtp_client,
     };
 
@@ -66,7 +60,7 @@ fn mailer() -> SmtpTransport {
         _ => smtp_client,
     };
 
-    smtp_client.timeout(Some(Duration::from_secs(CONFIG.smtp_timeout()))).build()
+    smtp_client.build()
 }
 
 fn get_text(template_name: &'static str, data: serde_json::Value) -> Result<(String, String, String), Error> {
@@ -84,8 +78,9 @@ fn get_template(template_name: &str, data: &serde_json::Value) -> Result<(String
         None => err!("Template doesn't contain subject"),
     };
 
+    use newline_converter::unix2dos;
     let body = match text_split.next() {
-        Some(s) => s.trim().to_string(),
+        Some(s) => unix2dos(s.trim()).to_string(),
         None => err!("Template doesn't contain body"),
     };
 
@@ -303,25 +298,18 @@ fn send_email(address: &str, subject: &str, body_html: &str, body_text: &str) ->
 
     let address = format!("{}@{}", address_split[1], domain_puny);
 
-    let data = MultiPart::mixed()
-        .multipart(
-            MultiPart::alternative()
-                .singlepart(
-                    SinglePart::quoted_printable()
-                        .header(header::ContentType("text/plain; charset=utf-8".parse()?))
-                        .body(body_text),
-                )
-                .multipart(
-                    MultiPart::related().singlepart(
-                        SinglePart::quoted_printable()
-                            .header(header::ContentType("text/html; charset=utf-8".parse()?))
-                            .body(body_html),
-                    )
-                    // .singlepart(SinglePart::base64() -- Inline files would go here
-                ),
-        )
-        // .singlepart(SinglePart::base64()  -- Attachments would go here
-        ;
+    let html = SinglePart::base64()
+        .header(header::ContentType("text/html; charset=utf-8".parse()?))
+        .body(body_html);
+
+    let text = SinglePart::base64()
+        .header(header::ContentType("text/plain; charset=utf-8".parse()?))
+        .body(body_text);
+
+    // The boundary generated by Lettre it self is mostly too large based on the RFC822, so we generate one our selfs.
+    use uuid::Uuid;
+    let boundary = format!("_Part_{}_", Uuid::new_v4().to_simple());
+    let alternative = MultiPart::alternative().boundary(boundary).singlepart(text).singlepart(html);
 
     let email = Message::builder()
         .to(Mailbox::new(None, Address::from_str(&address)?))
@@ -330,7 +318,7 @@ fn send_email(address: &str, subject: &str, body_html: &str, body_text: &str) ->
             Address::from_str(&CONFIG.smtp_from())?,
         ))
         .subject(subject)
-        .multipart(data)?;
+        .multipart(alternative)?;
 
     let _ = mailer().send(&email)?;
     Ok(())