Issue Greylisting and domain aliases

[mjehlenz]

Hello, we have a small problem with the greylisting service on one of our servers running Plesk Obsidian.

We have disabled greylisting in the settings for the main domain of a subscription. This successfully disables greylisting for mails to this domain. The subscription also has a domain alias, but there seems to be no setting to disable greylisting for this domain alias. Unfortunately greylisting remains active for emails directed at this domain alias.

On the command line I can see that greylisting has been disabled for the main domain (I have redacted the domain name):

# plesk bin grey_listing --info-domain example.com
Grey listing for domain is disabled
SUCCESS:  Gathering information for 'example.com' complete.

The alias domain does not seem to have separate settings (I have redacted the domain name):

# plesk bin grey_listing --info-domain aliasdomain.com
Unable to find domain with name 'aliasdomain.com'
exit status 4

How can we disable greylisting for the main domain and all domain aliases of one subscription?

Thanks in advance for your help!