diff --git a/changelog.d/swoosh-mua.add b/changelog.d/swoosh-mua.add
new file mode 100644
index 000000000..d4c4bbd08
--- /dev/null
+++ b/changelog.d/swoosh-mua.add
@@ -0,0 +1 @@
+Added dependencies for Swoosh's Mua mail adapter
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 6a535e054..36e9cbba2 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -742,6 +742,21 @@ config :pleroma, Pleroma.Emails.Mailer,
   auth: :always
 ```
 
+An example for Mua adapter:
+
+```elixir
+config :pleroma, Pleroma.Emails.Mailer,
+  enabled: true,
+  adapter: Swoosh.Adapters.Mua,
+  relay: "mail.example.com",
+  port: 465,
+  auth: [
+    username: "YOUR_USERNAME@domain.tld",
+    password: "YOUR_SMTP_PASSWORD"
+  ],
+  protocol: :ssl
+```
+
 ### :email_notifications
 
 Email notifications settings.
diff --git a/mix.exs b/mix.exs
index 0d49a6b45..ceae5c26d 100644
--- a/mix.exs
+++ b/mix.exs
@@ -153,7 +153,7 @@ defmodule Pleroma.Mixfile do
       {:calendar, "~> 1.0"},
       {:cachex, "~> 3.2"},
       {:tesla, "~> 1.11"},
-      {:castore, "~> 0.1"},
+      {:castore, "~> 1.0"},
       {:cowlib, "~> 2.9", override: true},
       {:gun, "~> 2.0.0-rc.1", override: true},
       {:finch, "~> 0.15"},
@@ -169,6 +169,8 @@ defmodule Pleroma.Mixfile do
       {:swoosh, "~> 1.16.9"},
       {:phoenix_swoosh, "~> 1.1"},
       {:gen_smtp, "~> 0.13"},
+      {:mua, "~> 0.2.0"},
+      {:mail, "~> 0.3.0"},
       {:ex_syslogger, "~> 1.4"},
       {:floki, "~> 0.35"},
       {:timex, "~> 3.6"},
diff --git a/mix.lock b/mix.lock
index 01f2eef98..2cf44862b 100644
--- a/mix.lock
+++ b/mix.lock
@@ -11,7 +11,7 @@
   "cachex": {:hex, :cachex, "3.6.0", "14a1bfbeee060dd9bec25a5b6f4e4691e3670ebda28c8ba2884b12fe30b36bf8", [:mix], [{:eternal, "~> 1.2", [hex: :eternal, repo: "hexpm", optional: false]}, {:jumper, "~> 1.0", [hex: :jumper, repo: "hexpm", optional: false]}, {:sleeplocks, "~> 1.1", [hex: :sleeplocks, repo: "hexpm", optional: false]}, {:unsafe, "~> 1.0", [hex: :unsafe, repo: "hexpm", optional: false]}], "hexpm", "ebf24e373883bc8e0c8d894a63bbe102ae13d918f790121f5cfe6e485cc8e2e2"},
   "calendar": {:hex, :calendar, "1.0.0", "f52073a708528482ec33d0a171954ca610fe2bd28f1e871f247dc7f1565fa807", [:mix], [{:tzdata, "~> 0.5.20 or ~> 0.1.201603 or ~> 1.0", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "990e9581920c82912a5ee50e62ff5ef96da6b15949a2ee4734f935fdef0f0a6f"},
   "captcha": {:git, "https://git.pleroma.social/pleroma/elixir-libraries/elixir-captcha.git", "6630c42aaaab124e697b4e513190c89d8b64e410", [ref: "6630c42aaaab124e697b4e513190c89d8b64e410"]},
-  "castore": {:hex, :castore, "0.1.22", "4127549e411bedd012ca3a308dede574f43819fe9394254ca55ab4895abfa1a2", [:mix], [], "hexpm", "c17576df47eb5aa1ee40cc4134316a99f5cad3e215d5c77b8dd3cfef12a22cac"},
+  "castore": {:hex, :castore, "1.0.8", "dedcf20ea746694647f883590b82d9e96014057aff1d44d03ec90f36a5c0dc6e", [:mix], [], "hexpm", "0b2b66d2ee742cb1d9cb8c8be3b43c3a70ee8651f37b75a8b982e036752983f1"},
   "cc_precompiler": {:hex, :cc_precompiler, "0.1.9", "e8d3364f310da6ce6463c3dd20cf90ae7bbecbf6c5203b98bf9b48035592649b", [:mix], [{:elixir_make, "~> 0.7", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "9dcab3d0f3038621f1601f13539e7a9ee99843862e66ad62827b0c42b2f58a54"},
   "certifi": {:hex, :certifi, "2.12.0", "2d1cca2ec95f59643862af91f001478c9863c2ac9cb6e2f89780bfd8de987329", [:rebar3], [], "hexpm", "ee68d85df22e554040cdb4be100f33873ac6051387baf6a8f6ce82272340ff1c"},
   "combine": {:hex, :combine, "0.10.0", "eff8224eeb56498a2af13011d142c5e7997a80c8f5b97c499f84c841032e429f", [:mix], [], "hexpm", "1b1dbc1790073076580d0d1d64e42eae2366583e7aecd455d1215b0d16f2451b"},
@@ -72,6 +72,7 @@
   "jumper": {:hex, :jumper, "1.0.2", "68cdcd84472a00ac596b4e6459a41b3062d4427cbd4f1e8c8793c5b54f1406a7", [:mix], [], "hexpm", "9b7782409021e01ab3c08270e26f36eb62976a38c1aa64b2eaf6348422f165e1"},
   "linkify": {:hex, :linkify, "0.5.3", "5f8143d8f61f5ff08d3aeeff47ef6509492b4948d8f08007fbf66e4d2246a7f2", [:mix], [], "hexpm", "3ef35a1377d47c25506e07c1c005ea9d38d700699d92ee92825f024434258177"},
   "logger_backends": {:hex, :logger_backends, "1.0.0", "09c4fad6202e08cb0fbd37f328282f16539aca380f512523ce9472b28edc6bdf", [:mix], [], "hexpm", "1faceb3e7ec3ef66a8f5746c5afd020e63996df6fd4eb8cdb789e5665ae6c9ce"},
+  "mail": {:hex, :mail, "0.3.1", "cb0a14e4ed8904e4e5a08214e686ccf6f9099346885db17d8c309381f865cc5c", [:mix], [], "hexpm", "1db701e89865c1d5fa296b2b57b1cd587587cca8d8a1a22892b35ef5a8e352a6"},
   "majic": {:hex, :majic, "1.0.0", "37e50648db5f5c2ff0c9fb46454d034d11596c03683807b9fb3850676ffdaab3", [:make, :mix], [{:elixir_make, "~> 0.6.1", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "7905858f76650d49695f14ea55cd9aaaee0c6654fa391671d4cf305c275a0a9e"},
   "makeup": {:hex, :makeup, "1.0.5", "d5a830bc42c9800ce07dd97fa94669dfb93d3bf5fcf6ea7a0c67b2e0e4a7f26c", [:mix], [{:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cfa158c02d3f5c0c665d0af11512fed3fba0144cf1aadee0f2ce17747fba2ca9"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.14.1", "4f0e96847c63c17841d42c08107405a005a2680eb9c7ccadfd757bd31dabccfb", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f2438b1a80eaec9ede832b5c41cd4f373b38fd7aa33e3b22d9db79e640cbde11"},
@@ -85,6 +86,7 @@
   "mock": {:hex, :mock, "0.3.8", "7046a306b71db2488ef54395eeb74df0a7f335a7caca4a3d3875d1fc81c884dd", [:mix], [{:meck, "~> 0.9.2", [hex: :meck, repo: "hexpm", optional: false]}], "hexpm", "7fa82364c97617d79bb7d15571193fc0c4fe5afd0c932cef09426b3ee6fe2022"},
   "mogrify": {:hex, :mogrify, "0.9.3", "238c782f00271dace01369ad35ae2e9dd020feee3443b9299ea5ea6bed559841", [:mix], [], "hexpm", "0189b1e1de27455f2b9ae8cf88239cefd23d38de9276eb5add7159aea51731e6"},
   "mox": {:hex, :mox, "1.1.0", "0f5e399649ce9ab7602f72e718305c0f9cdc351190f72844599545e4996af73c", [:mix], [], "hexpm", "d44474c50be02d5b72131070281a5d3895c0e7a95c780e90bc0cfe712f633a13"},
+  "mua": {:hex, :mua, "0.2.3", "46b29b7b2bb14105c0b7be9526f7c452df17a7841b30b69871c024a822ff551c", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}], "hexpm", "7fe861a87fcc06a980d3941bbcb2634e5f0f30fd6ad15ef6c0423ff9dc7e46de"},
   "multipart": {:hex, :multipart, "0.4.0", "634880a2148d4555d050963373d0e3bbb44a55b2badd87fa8623166172e9cda0", [:mix], [{:mime, "~> 1.2 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}], "hexpm", "3c5604bc2fb17b3137e5d2abdf5dacc2647e60c5cc6634b102cf1aef75a06f0a"},
   "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
   "nimble_parsec": {:hex, :nimble_parsec, "0.6.0", "32111b3bf39137144abd7ba1cce0914533b2d16ef35e8abc5ec8be6122944263", [:mix], [], "hexpm", "27eac315a94909d4dc68bc07a4a83e06c8379237c5ea528a9acff4ca1c873c52"},