[Dovecot] Cyrus vs Dovecot

[Timo Sirainen]

On Aug 12, 2008, at 3:41 AM, Mathieu Kretchner wrote:

>>> Database user ?
>>> LDAP
>
> Here is an other problem : we don't have uid/gid stored in our LDAP  
> database. Do we have to configure dovecot with a dovecot specific  
> user/group ?

Yes, one or more (for one you have mail_uid/gid settings with v1.1).  
See http://wiki.dovecot.org/UserIds

>> no problem
>>> Mail DB ?
>>> Cyrus maildir
>> You'll have to convert to standard maildir:
>> http://wiki.dovecot.org/Migration/Cyrus
>
> Thanks for the url, I've already seen it before and the script  
> cyrus2courrier seems good but we wonder why you didn't mention  
> imapsync ? (maybe because for mass migration we must have a clear  
> password file?)

Most importantly imapsync doesn't preserve message UIDs. cyrus2courier  
is also faster since it doesn't have to write all the mail data, just  
rename the files.

>>> Capability ?
>>> Sieve / Quota
>> On latest version (1.1.2 currently), no problem, but a newer/full  
>> rewrite to provide native sieve capability is in progress, which  
>> will provide much better control
>>> High Performance without hacking conf files !
>> this is one of dovecots strongest points imo...
>
> Indeed, we bench cyrus and dovecot from scratch and dovecot seems to  
> be realy fast !

Benchmarking IMAP servers for real-world usage is a bit difficult. http://imapwiki.org/Benchmarking
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