[Dovecot] Running dovecot master processes across multiple IPs

[Steven F Siirila]

We are running dovecot 1.1.8 and are currently running it with 4 master
processes (one for each of the protocols: imap, imaps, pop3, pop3s).
The idea was to spread out the load so as to not overwhelm any one master.
This has worked well.  To take it further, we're contemplating running
masters across multiple IP addresses, where the host/service name DNS
records would be something like this:

imap-server.domain	A	10.1.1.1
			A	10.1.1.2
			A	10.1.1.3
			A	10.1.1.4

The default route would either be through the first address (10.1.1.1 in
this example) or potentially across all of them in presumably a round-robin
fashion.

Do you see any problems with this?  Has anyone done this?

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