Tracing IMAP commands on the server

[Daniel Nilsson]

Luca Olivetti wrote:
> Daniel Nilsson wrote:
>> We are using mozilla as our preferred mail client at work together 
>> with a Cyrus 2.0.16 IMAP server. This combination works fine for the 
>> most part, though I'd like to debug one problem that I'm pretty sure 
>> is a Mozilla bug. Sometimes, when I read messages they are marked as 
>> read in the mail client but a few minutes later (probably when the 
>> client checks for new mail the next time) they reappear as unread 
>> again in Mozilla. This mostly happens with messages that are filtered 
>> by sieve into subfolders of the INBOX, not so often in the INBOX itself.
> 
> Welcome to the club.
> Mozilla is doing its job fine, it's a problem with cyrus: while one 
> process marks messages as read, other ones still see them as unread (I 
> did trace the communication between mozilla and cyrus when this happened).
> Using skiplist as the backend for the seen db (instead of the default 
> flat file) seems to alleviate (if not totally solve) the problem.

Ok, thanks for that info... So I guess I can close this bugreport in 
Mozilla then...

My question now is, I have Cyrus 2.0.16 running in a production 
environment. From what I can tell skiplist was introduced in Cyrus 
2.1.1. Upgrading my production environment to fix this issue is not out 
of the question, but I'd really like to see other improvements as well 
to the IMAP server to justify the risk. For a single domain using 
Cyrus/Sieve 2.0.16, what would be my biggest benefits going from 2.0.16 
to 2.1.9 ?

Thanks
-- 
Daniel Nilsson
Senior Consultant
Signal Integrity Software Inc.
6 Clock Tower Place, Suite 250
Maynard, MA 01754
Phone: (978) 461-0449, ext 12
Cell:  (508) 783-1379
http://www.sisoft.com
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