Thanks Mike. Please feel free to add your comments to the Affirmations
on the wiki page
(http://wiki.qmailtoaster.com/index.php/Main_Page#Affirmations). When we
get enough of them I'll put them on a separate page. :)
--
-Eric 'shubes'
Mike Canty wrote:
Eric,
Thank you for your input.
I was looking on the web yesterday and came across the following page
http://www.mail-archive.com/[email protected]/msg26685.html
This did lead me to check the number of running IMAP processes and it was
sitting at 43. After killing these processes, the IMAP accounts worked
correctly, but the number steadily built until they got to over 40 again and
problem re-occurred.
I have increased the MAXSESSIONS in the /etc/courier/imapd file to 50, but I
think this is a stop gap measure.
I will investigate the Dovecot solution in the mean time.
By the way, I would like to thank yourself and Jake for the Toaster programs
and the follow up information/support. I was a Qmailrocks user and this is
like a breath of fresh air. I now have installed Qmail Toaster in 4 sites
and looking to another 4 and it just keeps on getting better.
Cheers
-----Original Message-----
From: Eric Shubert [mailto:[email protected]]
Sent: Friday, 23 April 2010 1:39 AM
To: [email protected]
Subject: [qmailtoaster] Re: IMAP Folder SYNC issues after re-establishing
Spamd and Clamd
Mike Canty wrote:
To All,
For some time I have not been running Clamd or Spamd as part of my
simscan. This was because of an unrelated issue, now resolved.
Recently I have returned these checking of messages using Clamd and Spamd,
see below.
/var/qmail/control/simcontrol
:clam=yes,spam=yes,spam_hits=12,attach=.mp3:.src:.bat:.pif
Since doing this our server is picking up more spam and virus related
messages, so everything is working.
My problem is, now the Sync of IMAP accounts fails quite regularly. We
only
have about 20 IMAP accounts along with another 180 or POP accounts.
POP users are not seeing issues, just the Sync on IMAP.
Is there a way to see what is causing the issues? Or is there a way to
"tweak" IMAP to improve the service? The majority of my Toaster (CentOS
5)
install is as per Jake's Instructions.
Cheers
Mike Canty
----------------------------------------------------------------------------
-----
I'm not getting a clear picture of what "the Sync of IMAP accounts fails
quite regularly" entails. Which client program(s)? What is the client
configuration (port, SSL/TLS)? What is the client error message, if any?
What does the imap log(s) show?
That being said, courier should work fine with relatively small IMAP
accounts. Do these accounts have any folders with a lot (thousands) of
messages? Are the sessions timing out?
I normally don't like suggesting switching to something different when
something doesn't work, but you should know that future versions of QMT
will be using Dovecot instead of Courier. Many QMT users are already
using Dovecot with great success. Dovecot performs significantly better
with large IMAP accounts, and is very robust (it fixes things
automatically that it find out of whack). You might want to consider
giving Dovecot a try. I believe that there is a wiki how-to page for
Dovecot that was added recently, and there are fairly recent posts about
it in the list archives. I expect that your time would be better spent
installing Dovecot than trying to fix what might be wrong with Courier.
It's up to you though.
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