ERROR: No reverse DNS (PTR) entries. The problem MX records are:
Are you getting the following error for MX records when you check your site with Intodns.com?
This is not a serious error, you are probably using Cloudflare email forwarding. If you still want to fix this minor issue, you should contact your ISP and request them to add a PTR record for your IPs.
This means that your ISP provider will need to provide you with an rDNS record.
However, most ISPs do not support this process because it is not important..
In short, even if you are a server owner, you cannot do this alone.
And it’s not a big deal, just ignore it.
Example Errors
ERROR: No reverse DNS (PTR) entries. The problem MX records are: 17.205.159.162.in-addr.arpa -> no reverse (PTR) detected 23.205.159.162.in-addr.arpa -> no reverse (PTR) detected 24.205.159.162.in-addr.arpa -> no reverse (PTR) detected 18.205.159.162.in-addr.arpa -> no reverse (PTR) detected 12.205.159.162.in-addr.arpa -> no reverse (PTR) detected 13.205.159.162.in-addr.arpa -> no reverse (PTR) detected 19.205.159.162.in-addr.arpa -> no reverse (PTR) detected 25.205.159.162.in-addr.arpa -> no reverse (PTR) detected 11.205.159.162.in-addr.arpa -> no reverse (PTR) detected You should contact your ISP and ask him to add a PTR record for your ips