diff --git a/default.nix b/default.nix
index 72317e4..82e40b6 100644
--- a/default.nix
+++ b/default.nix
@@ -777,7 +777,7 @@ in
     rejectSenderMessage = mkOption {
       type = types.str;
       default = "";
-      example = "Your e-mail has not been delivered because we have blocked your e-mai address. If you believe that your e-mail address has been blocked by mistake, or if you have any other legitimate concern, please contact <address>.";
+      example = "Your e-mail has not been delivered because we have blocked your e-mail address. If you believe that your e-mail address has been blocked by mistake, or if you have any other legitimate concern, please contact <address>.";
       description = ''
         SMTP message returned to rejected senders. If not set the Postfix
         default will be used.
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index e0c2bd8..c7daaef 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -32,6 +32,8 @@ NixOS 26.05
   :option:`mailserver.ldap.attributes.username`.
 - Local and LDAP accounts can now co-exist. For overlapping names and addresses
   the local account will always win.
+- Custom reject messages for blocked senders are now possible by setting
+  :option:`mailserver.rejectSenderMessage` to e.g. comply with GDPR.
 - The following integrations are deprecated and will be removed before the next
   release: