Re: Login failed, server replied: A000003 NO Maximum number of connections from user+IP exceeded ( mail_max_userip_connections )
Am Donnerstag, 7. November 2013, 11:41:13 schrieb Reinhold Rumberger:
> Am Mittwoch 06.11.2013, 23:24:58 schrieb Rainer Dorsch:
> > Hello,
> >
> > after upgrading from 4.10.5 to 4.11.2, I regularly get from kmail2 this
> > message:
> >
> > The server for account "boko" refused the supplied username and password.
> > Do you want to go to the settings, have another attempt at logging in, or
> > do nothing?
> >
> > Login failed, server replied: A000003 NO Maximum number of connections
> > from
> > user+IP exceeded ( mail_max_userip_connections )
> >
> >
> > Restarting dovecot on the server side fixes the problem. Does
> > akonadi/kmail
> > have some "connection leaks", i.e. is opening but not properly closing
> > connections?
>
> Shortly after I switched to KMail2, my university account was disabled with
> a comment from the admin that my mail client was spamming connections (some
> hundreds per second). Since then I don't trust KMail2 with my university
> email anymore, so I don't know whether this still happens.
Interesting.
I have seen something similar and am now using Icedove at work due to that:
Bug 322199 - akonadi_imap spams perdition log when two clients are active and
gets restarted all the time
https://bugs.kde.org/322199
Related to that:
Bug 322200 - limit restarts of crashing resources
https://bugs.kde.org/show_bug.cgi?id=322200
Please give feedback to the bug report above. So far devs may the thinking it
just happens for me.
Note that it may not be actually a crashing resource, maybe just lots of new
connections, would be nice if you can find out whether you akonadi imap
resource gets restarted all the time (changing PID quickly) or its just new
connection attempt as I could prove.
I am reluctant to try this on our infrastructure again, since it almost ate
our IMAP proxy server by spamming it so badly that log filled up available disk
space.
Ciao,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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