[Dovecot] Extra Imap processes

Patrick Nagel patrick.nagel at star-group.net
Mon Mar 15 07:36:35 EET 2010

Hash: SHA1

Hi Dominique,

On 2010-03-15 12:43, Dominique St-Amand wrote:
> Hello fellow dovecot users!
> I have a question for you guys. I have a server running dovecot/exim and I
> allow both pop/pops and imap/imaps. When I look at the running processes, I
> see a lot of imap processes that look like the following: imap
> [user at domain.tld USER_IP]
> Sometimes, there are duplicates imap [user at domain.tld USER_IP] processes.
> I was wondering, how come those processes don't quit and stick around in the
> system? Should they quit after the user issued the disconnect command from
> its mail client?
> Also, is there any way to actually make them to quit or should I make a
> shell script that runs at a certain period of time and actually kill those
> processes?

Just a guess: those processes could be the result IMAP clients making
use of the IMAP IDLE extension ("push mail").

Thunderbird, by default, opens up to five connections to the IMAP server
and keeps them open - thus you see five IMAP processes for each user.

Why would you want to kill those processes - do they cause any problems?


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