Question Email Blacklist everything but one Domain?

[KEComm]

Server operating system version

Ubuntu 22.04.3 LTS

Plesk version and microupdate number

18.0.57 #5

Is ist possible to use the Blacklist all TLDs but one, using the Blacklist/Whitelist feature?

Example:
Blacklist: @.com (blocks everything with .com)
Whitelist: @mydomain.com

Does this work or does the contradiction prevent the whitelist to work?

Is there a different solution? I want to only receive mails from ONE domain.

 

[Peter Debik]

Maybe you'll need to add a * between @ and .com for the block list, but generally all that is on the allow list will be allowed regardless what's on the block list.

 

[KEComm]

Maybe you'll need to add a * between @ and .com for the block list, but generally all that is on the allow list will be allowed regardless what's on the block list.

The instructions in the plesk admin state specifically to not use * and ? wildcards

 

[Peter Debik]

The instructions in the plesk admin state specifically to not use * and ? wildcards

Please let me know where you see this. When I open the SpamAssassin drawer I see this:

 

[KEComm]

Hi! I am somewhere different. I am in Tools&Settings/Email/Email Security/Server Settings
(Also my Plesk is in German, so excuse if I name things incorrectly)
I don't see "Spam Assassin" anywhere. In the Email Security settings I have this:

 

[KEComm]

I just saw that I do not have SpamAssassin installed. But I have the same rules in the Spam Filter Settings:
Do you think it is a problem to have two similar sets of rules in two places?

 

[KEComm]

So if I were to use SpamAssassin or the Spam Filter settings:

Would it work to block all .com addresses but from one domain by blacklisting *@*.com and allowing *@mydomain.com ?

 

[Peter Debik]

Would it work to block all .com addresses but from one domain by blacklisting *@*.com and allowing *@mydomain.com ?

Yes.