Question Hot to avoid E-Mail blacklisting

[yemindo]

Server operating system version

Debian 11.5

Plesk version and microupdate number

Plesk Obsidian 18.0.47 Update #5

Hello,

I own Plesk Host Edition and run several customer websites.

Unfortunately, most of the time when a customer does not
follow the rules, the IP of the server is blocked.

How to configure the server so that the domain of the customer is
blacklisted and not the entire IP of the server.
I want to avoid that other customers are affected.

I have created an attachment with my mail settings.
In outgoing mail mode there is a choice, IP and Domain Names in SMTP greeting.
Is this possibly the setting I am looking for?

 

[Bitpalast]

Blacklists only block IP addresses, not domain names.

Your settings are fine as they are.

Do not use the SMTP domain name greeting option when you have shared IPs. It will most likely put the server onto Spamhaus' blacklist, because they evaluate domain/ip pairs against known valid domain/ip pairs.