diff --git a/config/description.exs b/config/description.exs
index 85f90ca3e..8922a3626 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -295,13 +295,6 @@ config :pleroma, :config_description, [
         description: "`Swoosh.Adapters.SMTP` adapter specific setting",
         suggestions: [5]
       },
-      %{
-        group: {:subgroup, Swoosh.Adapters.SMTP},
-        key: :no_mx_lookups,
-        label: "No MX lookups",
-        type: :boolean,
-        description: "`Swoosh.Adapters.SMTP` adapter specific setting"
-      },
       %{
         group: {:subgroup, Swoosh.Adapters.Sendgrid},
         key: :api_key,