Cyrus vs Dovecot

Mathieu Kretchner mathieu.kretchner at
Tue Aug 12 10:38:56 EDT 2008

Adam Tauno Williams a écrit :
> On Tue, 2008-08-12 at 12:53 +0200, Mathieu Kretchner wrote:
>> Adam Tauno Williams a écrit :
>>>> The real question is because we have only 2 options :
>>>> Why should I choose Cyrus instead of dovecot ?
>>> Features like delayed expunge, message expiration, etc... that allow you
>>> to have a managed mail store.  Cyrus is the only Open Source IMAP/POP
>>> server I know of with any capacity to support data-retention policies.
>> Ok thanks ! A good point on the cyrus side !
>> What about the performance ?
> Cyrus performance is excellent.  Is there a specific problem?
> Personally I don't think anything is faster than Cyrus.
>> Does my next configuration will run correctly ? Which hardware should I 
>> buy for this activity ?
> Beats me.
>> At present, we have a lot of I/O, we wonder if the last version of cyrus 
>> is improved for this point ?
> If you have allot of users and allot of mail you are going to have allot
> of I/O.  No way around that, regardless of the server.  Cyrus' indexes
> headers better now, so that might help.  But you still need adequate
> through-put.  I've found that /var/lib/imap (meta-data) needs fast I/O
> but /var/spool/imap (message store) doesn't due too bad tossed onto a
> SAN or slower disks.

Ok I got it, thanks for your experience feed back !

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