On Fri, 2010-01-22 at 19:31 +0200, Timo Sirainen wrote: > > Is this the situation we discussed once where a dovecot instance becomes a > > proxy if it detects that a user should be on a different server? > > No, that was my 1) plan :) And this is already possible with > proxy_maybe: http://wiki.dovecot.org/PasswordDatabase/ExtraFields/Proxy
So, clarification: Either using dedicated proxies or using proxy_maybe works for 1). I just didn't remember proxy_maybe. I suppose that's a better/easier solution since it doesn't require new hardware or network changes.
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