Hey guys.. I was deleteing a domain from the postfix whitelist and somehow ended up deleting the entire domain of the server... HELP How do I recover . There was 3 emails on that domain.
You will have to restore it from the backup if you have one. If you dont have a backup, you should install a backup script on your server in future: http://www.howtoforge.com/forums/showthread.php?t=41609
If you dont have a backup and the domain directory in /var/vmail is gone because the domain has been deleted, then there is nothing that you can do.
