diff --git a/data/conf/postfix/main.cf b/data/conf/postfix/main.cf
index 4f365677..d064e2d0 100644
--- a/data/conf/postfix/main.cf
+++ b/data/conf/postfix/main.cf
@@ -90,3 +90,4 @@ virtual_uid_maps = static:5000
 smtpd_milters = inet:rmilter:9900
 non_smtpd_milters = inet:rmilter:9900
 milter_mail_macros = i {mail_addr} {client_addr} {client_name} {auth_authen}
+mydestination = localhost.localdomain, localhost