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ERROR: No reverse DNS (PTR) entries

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

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