diff --git a/lib/pleroma/config/config_db.ex b/lib/pleroma/config/config_db.ex
index 91a1aa0cc..be6688095 100644
--- a/lib/pleroma/config/config_db.ex
+++ b/lib/pleroma/config/config_db.ex
@@ -416,7 +416,7 @@ defmodule Pleroma.ConfigDB do
 
   @spec is_module_name?(String.t()) :: boolean()
   def is_module_name?(string) do
-    Regex.match?(~r/^(Pleroma|Phoenix|Tesla|Quack|Ueberauth)\./, string) or
+    Regex.match?(~r/^(Pleroma|Phoenix|Tesla|Quack|Ueberauth|Swoosh)\./, string) or
       string in ["Oban", "Ueberauth", "ExSyslogger"]
   end
 end
diff --git a/test/config/config_db_test.exs b/test/config/config_db_test.exs
index 61a0b1d5d..812709fd8 100644
--- a/test/config/config_db_test.exs
+++ b/test/config/config_db_test.exs
@@ -307,6 +307,15 @@ defmodule Pleroma.ConfigDBTest do
       assert ConfigDB.from_binary(binary) == Quack.Logger
     end
 
+    test "Swoosh.Adapters modules" do
+      binary = ConfigDB.transform("Swoosh.Adapters.SMTP")
+      assert binary == :erlang.term_to_binary(Swoosh.Adapters.SMTP)
+      assert ConfigDB.from_binary(binary) == Swoosh.Adapters.SMTP
+      binary = ConfigDB.transform("Swoosh.Adapters.AmazonSES")
+      assert binary == :erlang.term_to_binary(Swoosh.Adapters.AmazonSES)
+      assert ConfigDB.from_binary(binary) == Swoosh.Adapters.AmazonSES
+    end
+
     test "sigil" do
       binary = ConfigDB.transform("~r[comp[lL][aA][iI][nN]er]")
       assert binary == :erlang.term_to_binary(~r/comp[lL][aA][iI][nN]er/)