Re: [CentOS] restrict postfix to only certain users getting incoming mail

On Mon, Mar 05, 2012 at 11:50:21PM -0500, Bob Hoffman wrote:

What I would like is to just tell postfix to only allow incoming mail for user1 and user2 and reject all...but only from external sources, not locally sent mail.

You may use local_recipient_maps. On my home server, I have this in the postfix main.cf file:

mydestination = $myhostname, localhost local_recipient_maps = hash:/etc/postfix/local_recipients, $alias_maps

/etc/postfix/local_recipients contains the list of the users allowed to get mail from the external, one by line:

user1 OK user2 OK ...

Fill it with the values needed, then run "postmap /etc/postfix/local_recipients", and reload/restart postfix.

Also, see http://www.postfix.org/LOCAL_RECIPIENT_README.html