[PPP-22957] Restoring backup from other IMAP/POP server bounces mail

[Tozz]

Description
When restoring a backup from a Plesk machine that was running another mail server, mail to that domain is softbounced permanently with a 4xx.

eg. Plesk backup contains backup from a machine running Courier and you are restoring to a machine running Dovecot or vice versa.

Version
CPU Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4 core(s))
Version Plesk v12.5.30_build1205150826.19 os_Debian 8.0
OS Debian 8.4

How to reproduce?
1. Create a backup from a Plesk machine running Courier.
2. Restore the backup to a Plesk machine running Dovecot.

In the mailnames folder you will see (eg. info@example.com):
cat /var/qmail/mailnames/example.com/info/.qmail
| /usr/bin/deliverquota ./Maildir

This results in:
May 17 15:57:47 belinda postfix/pipe[4569]: 427D5122F367: to=<info@example.com>, relay=plesk_virtual, delay=0.5, delays=0.49/0/0/0.02, dsn=4.3.0, status=deferred (temporary failure. Command output: /bin/sh: 1: /usr/bin/deliverquota: not found 4.2.1 Message can not be delivered at this time )

This is because /usr/bin/deliverquota is for Courier and the machine is running Dovecot.

Expected result:
I would expect the Dovecot handler to be present in the .qmail file:

# cat .qmail
| true
| /usr/lib/dovecot/dovecot-lda -d "$DELIVERED_TO"

This is the correct handler for Dovecot.

Actual result:
# cat .qmail
| /usr/bin/deliverquota ./Maildir

The account still uses the handler for Courier, which does not exists because this machine runs Dovecot.

Mail is denied with a 4.2.1 and will permfail after +/- 5 days (depending on retry timeouts on sending server).

Fix
The Plesk Migration Manager (I believe PMM is used for restoring backups) should verify and fix the correct .qmail handler.

 

[IgorG]

Thank you for report. I have submitted corresponding bugreport PPP-22957.

 

[Tozz]

Any updates on this? I dont see PPP-22957 mentioned in the Onyx changelogs. Is this issue still unresolved?