Is the displayed IP reversed? For example, if the IP address is 192.168.2.1, the PTR record should be 1.2.168.192.
aaP_labinotberisha96
PRT [Not Set]
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Yes the original ip is
80.140.204.139
the PTR is set as 139.204.140.80.in-addr.arpa
In cloudflare the record is as follows: Type [PTR] - Domain name [domain] hostname [reverse ip] ttl [auto]
Okay, thank you for your feedback, we will check it out
5 days later
As you see, none is actually showing even tho ptr is set correctly and successfully(double checked)
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/www/server/panel/plugin/mail_sys/session.json
Hello, please check this file. and paste it
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here is it, couldn't upload directly i used wetransfer.
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Hello, your server IP is: 194.xxx.xx.xxx
No ptr record of your domain name was found. The PTR of this IP is: vmixxxx.contaboserver.net.
https://dnschecker.org/all-dns-records-of-domain.php
Greetings, now that you are familiar can you tell me how this should be set in cloudflare
It is recommended that you contact your network provider or server provider to add and modify PTR records
8 months later
I meet the same issue 
Please tell me which I should check and do first?
Hello, are you adding PTR records at the server provider or network provider?
The server's IP address that is successfully displayed should be