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WebPanel => Problems on other RedHat linux servers => Topic started by: venty on January 18, 2025, 05:44:14 PM

Title: rDNS/PTR = FAILED...
Post by: venty on January 18, 2025, 05:44:14 PM
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
Title: Re: rDNS/PTR = FAILED...
Post by: overseer on January 18, 2025, 06:42:58 PM
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?
Title: Re: rDNS/PTR = FAILED...
Post by: venty on January 19, 2025, 08:57:36 AM
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
Title: Re: rDNS/PTR = FAILED...
Post by: cyberspace on January 19, 2025, 09:29:56 AM
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
Title: Re: rDNS/PTR = FAILED...
Post by: venty on January 19, 2025, 11:20:24 AM
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
Title: Re: rDNS/PTR = FAILED...
Post by: cyberspace on January 19, 2025, 02:19:33 PM
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.
Title: Re: rDNS/PTR = FAILED...
Post by: venty on January 21, 2025, 09:01:55 AM
https://forum.centos-webpanel.com/e-mail/mail-server-error-with-ssl-on-customers-name-fqdn-server-work-fine/msg50058/?topicseen#msg50058