rDNS/PTR = FAILED...

Hi,

the server uses Alma Linux 9, I deleted a user several times due to some problems and now we get to:

rDNS/PTR = FAILED, check with your hosting provider! FAILED

I have talked to my provider, this rDNS worked before when I used Centos 7, now at the beginning with AL 9, but when deleting and creating a new user it was lost?

What should I do?

Thanks in advance!

BR
Venty

You need forward and reverse DNS, both agreeing in order to be considered a valid sending source for other servers to accept mail. It should not be tied to a particular user account. What is the server's FQDN?

You need forward and reverse DNS, both agreeing in order to be considered a valid sending source for other servers to accept mail. It should not be tied to a particular user account. What is the server's FQDN?

Hi,

PTR is available, but the panel shows that rDNS/PTR = FAILED...

BR
Venty

Review this post to get details how to check and diagnose RDNS/PTR related problems:
http://forum.centos-webpanel.com/dns/help-with-rdns/msg49130/#msg49130

Review this post to get details how to check and diagnose RDNS/PTR related problems:
http://forum.centos-webpanel.com/dns/help-with-rdns/msg49130/#msg49130

Hi,

I did what you recommended in the link provided, it gives me the correct answers...

BR
Venty

If everything is correct then the RDNS of the primary IP assigned to your VPS/Server is good and there is no problem with the RDNS/PTR or... you missed something.