diff --git a/.gitattributes b/.gitattributes
index 1076bdf8..ca6d93bb 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -480,6 +480,7 @@ etc/alternc/templates/postfix/myalias.cf -text
 etc/alternc/templates/postfix/mydomain.cf -text
 etc/alternc/templates/postfix/mygid.cf -text
 etc/alternc/templates/postfix/myquota.cf -text
+etc/alternc/templates/postfix/myrelay-domain.cf -text
 etc/alternc/templates/postfix/myrelay.cf -text
 etc/alternc/templates/postfix/mytransport.cf -text
 etc/alternc/templates/postfix/myvirtual.cf -text
diff --git a/etc/alternc/postfix.cf b/etc/alternc/postfix.cf
index bd8429ac..8fcd97c8 100644
--- a/etc/alternc/postfix.cf
+++ b/etc/alternc/postfix.cf
@@ -41,6 +41,8 @@ virtual_mailbox_base = /var/alternc/mail
 virtual_minimum_uid = 2000
 virtual_gid_maps = proxy:mysql:/etc/postfix/mygid.cf
 virtual_uid_maps = proxy:mysql:/etc/postfix/mygid.cf
+relay_recipient_maps = $virtual_alias_maps
+relay_domains = proxy:mysql:/etc/postfix/myrelay-domain.cf
 transport_maps = proxy:mysql:/etc/postfix/mytransport.cf
 dovecot_destination_recipient_limit = 1
 mailman_destination_recipient_limit = 1
diff --git a/etc/alternc/templates/postfix/myrelay-domain.cf b/etc/alternc/templates/postfix/myrelay-domain.cf
new file mode 100644
index 00000000..58b54419
--- /dev/null
+++ b/etc/alternc/templates/postfix/myrelay-domain.cf
@@ -0,0 +1,10 @@
+#
+# %%warning_message%%
+#
+
+user = %%db_mail_user%%
+password = %%db_mail_pwd%%
+hosts =%%dbhost%%
+dbname = %%dbname%%
+query = select name from mailman where domain = '%d'
+