Article ID: 113755, created on May 26, 2013, last review on Aug 12, 2014

  • Applies to:
  • Plesk 12.0 for Linux
  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux
  • Plesk 10.4 for Linux/Unix

Additional information

This feature disables the Parallels Plesk Panel (PP) mailserver's bounce response, which is sent when a user's mailbox is full to prevent mass spamming.
A description of the feature can be found here.
 
In /usr/local/psa/var/log/maillog, you can observe this behavior as follows:
 
Apr 24 08:40:08 a10-52-46-174 qmail-queue-handlers[15273]: Handlers Filter before-queue for qmail started ...
Apr 24 08:40:08 a10-52-46-174 qmail-queue-handlers[15273]: from=mail1@a10-52-52-104.qa.plesk.ru
Apr 24 08:40:08 a10-52-46-174 qmail-queue-handlers[15273]: to=mail1@a10-52-46-174.qa.plesk.ru
Apr 24 08:40:08 a10-52-46-174 qmail-queue-handlers[15273]: handlers_stderr: DATA Mailbox full#015
Apr 24 08:40:08 a10-52-46-174 qmail-queue-handlers[15273]: handlers_stderr: DEFER
Apr 24 08:40:08 a10-52-46-174 qmail-queue-handlers[15273]: DEFER during call 'check-quota' handler
 
If the feature is disabled:
 
Apr 24 08:55:33 a10-52-46-174 postfix/pipe[18487]: C5B7420080: to=<mail1@a10-52-46-174.qa.plesk.ru>, relay=plesk_virtual, delay=0.08, delays=0.02/0.01/0/0.04, dsn=5.7.1, status=bounced (Mail quota exceeded )
 
For successful delivery (when mailbox quota is not exceeded):
 
Apr 24 09:29:07 a10-52-46-174 /usr/lib/plesk-9.0/psa-pc-remote[18365]: handlers_stderr: SKIP
Apr 24 09:29:07 a10-52-46-174 /usr/lib/plesk-9.0/psa-pc-remote[18365]: SKIP during call 'check-quota' handler
 
There are not any messages in the maillog for successful delivery (if mailbox quota is not exceeded) when the feature is disabled.
 
Possible negative effects of the feature:
 
2. With PP versions released prior to 10.4.4 MU#27, when sending email to an external email address, the following record appears in the maillog:

Apr 24 08:40:08 a10-52-46-174 check-quota filter[15306]: Failed to run '/usr/sbin/postalias -q mail1@a10-52-52-104.qa.plesk.ru hash:/var/spool/postfix/plesk/virtual', rc = 1

Note that this feature is optional and that you can disable it with following commands:
# mysql -uadmin -p`cat /etc/psa/.psa.shadow` psa -e "REPLACE INTO misc VALUES ('reject_mail_when_overquota', 'false')"
# /usr/lib/plesk-9.0/mail_mailbox_restore --handlers-only

 

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