Jay Leafey wrote: > I'm using a similar setup at work, two identical Linux boxes (with a > pair of equal-priority MX records pointing to them) running > Postfix/Amavisd/SpanAssassin/anti-virus feeding to another box acting as > the POP/IMAP server. The DNS round-robin stuff does a fair job of load > balancing but it's not perfect, I'm still looking into alternatives for > that. > > In order to make the two servers redundant I'm using the LinuxHA > heartbeat stuff to make one of the servers take over the IP address used > by the other server for mail. So far it's survived several > single-server failures without a hiccup. How do you keep the storage synced up? NFS, drdb, GFS, ...? Thanks, Ajay