diff --git a/configuration.nix b/configuration.nix
index 4473b98..5587292 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -117,8 +117,8 @@
   services.mailman.siteOwner = "mailman@${config.networking.domain}";
   mailserver = {
     enable = true;
-    fqdn = "mail.${config.networking.fqdn}";
-    domains = [ "${config.networking.domain}" "lists.${config.networking.domain}" ];
+    fqdn = "mail.${config.networking.domain}";
+    domains = [ "${config.networking.domain}" "lists.${config.networking.domain}" "mail.${config.networking.domain}" ];
     ldap = {
       enable = true;
       bind = {