High availability mail server options

[Craig White]

On Tue, 2005-10-04 at 12:41 -0400, David Hollis wrote:
> On Tue, 2005-10-04 at 09:21 -0700, Craig White wrote:
> 
> > > 
> > > > 2. A Maildir setup would likely put each users folders in their home
> > > > directories making it extremely difficult to backup the mail itself
> > > > whereas something like cyrus-imapd has it's own mail store which can be
> > > > put onto it's own partition and could simply be dumped.
> > > Use qmail with vpopmail and all the mail ends up (by default unless you
> > > change it) in /home/vpopmail/domains/domainX/userX/Maildir .
> > ----
> > and that's perfect. I don't think dovecot would do it that way.
> > 
> > Craig
> 
> I have postfix sending the mail to a /home/vmail/domains/<domain>/<user>
> style arrangement.  Dovecot handles this arrangement nicely as well.
> Rsync should be able to handle it pretty easily via cron job, but it
> would be nice if I can reliably take it to a lower level.  
> 
> For receiving external mail, I can simply list both (or more) of the
> mail servers with MX and let them sync each other.  For joe internal
> user sending mail and accessing via IMAP, I would do an LVS or
> round-robin DNS style thing to get them to one of the servers.  While I
> may have a brief interruption in the event of a server failure, thats
> acceptable at this point.
----
I would be taking this up with a dovecot list since they are certain to
give you much better real world experience with these ideas.

Craig


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