[Dovecot] Courier-imap + dovecot simultaneously?
Kenny Dail
kend at amigo.net
Mon Apr 30 06:01:48 EEST 2007
> >> I have a client I've been trying to talk into switching from courier
> >> to dovecot, but the owner of the company wants me to set up two
> >> different accounts in Thunderbird (I finally got him switched to that
> >> from outlook express), one accessing his account through courier, and
> >> one through dovecot, so he can compare the speed...
> >>
> >> Is this even possible? I've never tried it before, so before I spend a
> >> lot of time, I want to know if I'd be wasting it (my time)...
>
> > Yes, it's possible. You just have to set the 2 servers up on separate
> > ports and make sure the correct ports are set in Thunderbird. I'm not
> > sure what would happen with dovecot's index files but most likely if
> > courier does something goofy they will just get rebuilt.
>
> Have you actually done it?
>
> I have Dovecot set up on port 10993, but before I actually fire it up, I
> want to make sure it isn't going to hose anything. I will backup the
> maildirs in question before I do bring dovecot up, of course, but still
> wouldn't want to do anything that might mess anything up.
>
> The index files are my main concern.
Courier will ignore them. So they may be out of sync if you move a lot
of messages around with Courier, but Dovecot will update them.
>
> I guess the safest thing to do is to tell postfix to queue his mail so
> nothing gets delivered while he's messing around, then let him play -
> see how fast folders load, etc (he's got some pretty big ones, 30,000
> messages or more)...
The safest thing to do, of course, is to back up.
>
> Thanks - I'll wait and see if anyone else chimes in - I like to get more
> than one opinion, and to hear from at least one person who has actually
> done what I'm about to do, when trying something like this (that I've
> never done before)...
>
I've done similar, my mailstore is on nfs, and had completely different
servers both accessing it. And yes, Dovecot was much much faster.
--
Kenny Dail <kend at amigo.net>
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