Since I have switched to dovecot, I'm reaching limits...
May 16 11:28:09 master: Warning: service(imap-login): process_limit
reached, client connections are being dropped
ps ax | grep dovecot | wc -l
200
(I was seeing a mix of imap and imap-login in the ps list)
doveconf reports default_client_limit=1000 and default_process_limit=100
I'm also seeing alot of:
"Info: Disconnected: Disconnected in IDLE bytes=102/1036"
"Info: Disconnected for inactivity bytes=94/497"
So, this raises a few points/questions.
First, I installed dovecot via instructions at
http://wiki.qmailtoaster.com/index.php/Replacing_Courier_IMAP_with_Dovecot_IMAP
which put me at 2.0.17. However, when researching the default
limits, I found that a changeset mentioned in Janurary of 2012 shows
the limit of connections right in the logfile when it reports that error.
So. Had anyone tested the 2.1.x branch of dovecot with
mailtoaster? I realize that most everyone is still using
courier... Furthermore, 2.2.1 has already been released. Has anyone
tried THAT?
We've got maybe 200 email accounts, which I think is minimal, but we
have alot of smartphones constantly checking mail. Still, I dont
think we should be reaching our limit of 100. Being that I am seeing
inactivity disconnects leads me to believe the clients arnt logging
out properly. So does anyone have a recommended setting for an idle
timeout (if thats user configurable)?
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