Redundant postfix MX's

[Matthew Crowe]

Hi,

Running 2 servers, different locations geographically.  I'd like to have 
them both store emails for a domain locally, and transfer them between 
each other.  The virtual_alias_maps/domains are stored in a mysql db 
thats already being replicated.  Mainly I just need a configuration that 
if email comes into server 1, it gets stored locally, and send off to 
server 2, then stored locally on server 2.

I have thought about running rsync and just keeping the Mailbox 
directories sync'd, but then there's a time delay.

Configuration on the 2 servers are pretty much identical.  I just want 
email to be stored both places for complete redundancy.

Any ideas?

Thanks.