The following message appears when running a Plesk Repair Mail
# plesk repair mail example.com
Repairing the mail server configuration
Reconfiguring the settings of domains: example.com ............. [FAILED]
- Unable to find row with id 0 in dns_zone table.
Reconfiguring the mailboxes ..................................... [OK]
The server does not have any DNS Server installed.
DKIM is enabled for the affected domain at Domains > example.com > Mail Settings
- #PPPM-11018 "Rotation of server local backups now works even if the server hostname length exceeds 47 characters."
- Plesk Obsidian 25 September 2019 (fixed as PPP-44325)
If update is not possible for some reason you may try the following
This error can be safely ignored as it does not affect the repair process.
As a workaround, disable DKIM for the affected domain
Log into Plesk
Access to Domains > example.com > Mail Settings
Uncheck the following option and save the settings.
CONFIG_TEXT: Use DKIM spam protection system to sign outgoing email messages