OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
Re: Newbie question - HOWTO Postfix cluster

From: Simon Waters (simonwzynet.net)
Date: Thu Jul 23 2009 - 09:21:28 CDT


On Thursday 23 July 2009 14:53:01 John Mok wrote:
>
> I am new to Postfix. Is Postfix capable to build the cluster without
> local user accounts on the servers?

Yes.

See virtual_mailbox_maps, virtual_mailbox_domains etc

http://www.postfix.org/VIRTUAL_README.html#virtual_mailbox

When I designed a similar system I delivered email using maildir format boxes
over NFS, so all the front end servers "thought" the recipient was local to
them (as a virtual mailboxes) when in fact weird NFS mappings were hidden at
the filesystem level. Afraid I never got to see how well it scaled outside
the lab.

You could equally define maps for relaying that deliver user1 to server1 using
SMTP instead of NFS, but that seems unnecessarily involved to me.