# update aliases.db
newaliases

#rm /usr/local/etc/postfix/system-virtual-mailboxes.db
#postmap /usr/local/etc/postfix/system-virtual-mailboxes

rm /usr/local/etc/postfix/virtual-maillist-alias-maps.db
postmap /usr/local/etc/postfix/virtual-maillist-alias-maps

service postfix reload