# update aliases.db
newaliases

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

rm /usr/local/etc/postfix/protected_destinations.db
postmap /usr/local/etc/postfix/protected_destinations

rm /usr/local/etc/postfix/restricted_senders.db
postmap /usr/local/etc/postfix/restricted_senders

service postfix reload