> I need a structure to increase easely more servers in the future. > > What is the better choice?
That's highly subjective, but here's what we do: - Six (currently, soon to be more) servers running in a cluster. - Servers use VRRP to fail over (one goes down, the others take over its IP. - Each machine knows about ALL users. As long as at least one machine in the cluster remains running mail still flows (although it may slow down) - Mailboxes stored on an NFS mounted file system. - Exim runs Spam Assassin with all the options (dnsbls, razor, etc.) Each server has its own local copy of SA running. - Messages are scanned by one virus scanner at a minimum, and possibly as many as *three* depending on current server load. (and yes, some scanners catch things that the other do not). Works a treat for us, never have any significant load issues at all. Mark -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
