Question Mailserver

[mkausen]

Server operating system version

Ubuntu 24.04

Plesk version and microupdate number

lesk Obsidian v18.0.76_build1800260323.18

Good morning.

I have the following problem.

I use Plesk to manage several websites. Some of them also have their own mail service.

How do I fix the "Reverse DNS does not match SMTP banner" error when there's actually only one mail server running?

 

[LRLD]

Where you have named your mail server mail.domain.tld, speak to your provider and ask them to set your Reverse DNS/PTR to mail.domain.tld.
That will remove the error from all domains.
Depending on your provider, you may be able to set the PTR yourself.
Regards

LD