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Mail problem - IMAP stops working

SlobodanG

New Pleskian
Hi,

I have fresh installed 12.0.18 and updated to mu#3, and then migrated about 100 domains from plesk 10 during last 10 days or so...
I was able to deal with everything except this thing with mail:

from time to time IMAP stops responding - if someone tries to log in through webmail, roundcube says can't connect to storage, and all IMAP clients say that they can't connect to IMAP. I haven't noticed that POP is affected as well, but I have to investigate that.
I have found that service dovecot reload fixes problem temporary. This thing started to happen more often as I have added more domains (mail accounts).
Currently there are about 500 mailboxes on server, and I'm planning to migrate few thousand more from plesk10 that was running courier-imap.

I was looking at logs (messages, maillog, roundcube log, dmesg, ... ) and couldn't find anything that can lead me in right direction.
When that happens this command gives output around 400-450: netstat -pan | grep imap | wc -l

92-plesk-service-imap.conf:
service imap {
service_count = 1
process_limit = 10000
}

and roundcube log looks like this

[11-Jun-2014 19:15:22 +0200]: IMAP Error: Login failed for xxx@xxx from xxx.xxx.xxx.80(X-Real-IP: xxx.xxx.xxx.80,X-Forwarded-For: xxx.xxx.xxx.80). Empty startup greeting (localhost:143) in /usr/share/psa-roundcube/program/lib/Roundcube/rcube_imap.php on line 184 (POST /?_task=login?_task=login&_action=login)

can someone give me an idea what else to look and try?
 
Pozdrav Slobodane,

Mi imamo isti problem na 3 servera i prema Parallels Support-u ovo je resenje:

Further I checked our internal links and found that generally this issue persists if "psa-mod-fcgid-configurator" package is not installed or corrupted.

I reinstalled the package "psa-mod-fcgid-configurator" with latest build.

-=-=-
[root@server ~]# rpm -qa | grep psa-mod-fcgid
psa-mod-fcgid-configurator-2.0.0-cos6.build110120606.19.x86_64

[root@server ~]# rpm -e psa-mod-fcgid-configurator-2.0.0-cos6.build110120606.19.x86_64

[root@server ~]# rpm -ivh http://autoinstall.plesk.com/PSA_12...rator-2.0.0-cos6.build120140331.11.x86_64.rpm
Retrieving http://autoinstall.plesk.com/PSA_12...rator-2.0.0-cos6.build120140331.11.x86_64.rpm
Preparing... ########################################### [100%]
1:psa-mod-fcgid-configura########################################### [100%]

[root@server ~]# rpm -qa | grep psa-mod-fcgid
psa-mod-fcgid-configurator-2.0.0-cos6.build120140331.11.x86_64

Miomir
 
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