Re: Issue with one user only, exceeding connections
8 Jun
2022
8 Jun
'22
10:54 p.m.
On my centos-7 dovecot install (same versions you indicate you are using), that connection-limiting line is in:
/etc/dovecot/conf.d/20-imap.conf
while you appear to have it in the main dovecot.conf file. If you have that in both places I'm not certain which one takes precedence, but you might want to check. [In my setup almost all the configuration pieces are in include files, rather than the main .conf.]
Starting with a "ps" (and grep &etc.) it's fairly easy to see how many connections any account has open. An open mailbox has one or two connections and then every folder (under a mailbox) that is open will have a connection associated with it too, which pushes up the count quickly if someone holds a lot of folders open.
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Richard