[clug] backing up a live mailserver
mikal at stillhq.com
Fri Mar 11 10:37:56 GMT 2005
Tony and Robyn Lewis wrote:
> We're running Dovecot IMAP on our mailserver, and we want to add a
> backup mailsever. We'll have it as a secondary MX record, for when the
> primary goes down.
> At the moment, it's a mental exercise, but the difficult part is that we
> want to keep the entire mailboxes synchronised, not just buffer incoming
> mail on the secondary. I'm thinking of using Unison to help keep them
> in sync. Done right (I hyphothesise) it should take care of
> sycnhronising when the primary goes down, and when it comes back up.
I know nothing about unison, but do something similar on a smaller scale
(laptop imap server syncs with home imap server via an encrypted tunnel,
and then I read mail on the laptop) using offlineimap. It only handles
one user at a time, but that's nothing that a little hacking couldn't
fix I imagine...
Michael Still (mikal at stillhq.com) | "The geek shall inherit
http://www.stillhq.com | the earth"
UTC + 11 | -- The Simpsons
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