Ptr record for multi domain

Hi everybody;

I have several domain on my server an there is only 1 mail server. This mail server use ns1.domain1.com as banner. I use ptr records as in below:

ptr of domain1: ns1.domain1.com
ptr of domain2: ns1.domain2.com

so mxtoolbox gives warning for domain2 and says that "Reverse DNS does not match SMTP Banner"

What should I do? Should I do ptr record of domain2 same with domain1?
But this time some blacklist like http://www.uceprotect.net/en/rblcheck.php gives warning and says that:

WARNING: Forward-DNS does NOT match Reverse-DNS.
DNS is INCONSISTENT.

Also can I setup another mail server on same directadmin but on different ip with different smtp banner?

I am trapped. Help me..

Accepted best practice is use your hostname (servername.example.com) for your mailserver name for outgoing email, running on your main server IP#. Then set up rDNS for that IP# to your hostname.

can I setup another mail server on same directadmin but on different ip with different smtp banner?

Click to expand...

Yes, but required customizations are well beyond the scope of free support on DirectAdmin forums. I don't know of any hosting company doing this, and I wouldn't be able to set it up myself without a lot of study.

Jeff