Dear @mesbahi med,
Good day! I apologize for the delayed response.
Regarding the PTR record, it is quite outdated and is no longer supported by most DNS providers.
Please note that Microsoft does not manage PTR records, as these are controlled by your domain registrar or hosting provider.
If the issue is related to this record, I recommend contacting your domain registrar directly. They are responsible for managing your DNS settings and can advise you on whether it's possible to add or modify a PTR record for your domain. However, as mentioned earlier, due to its age, many registrars may not support it anymore.
Furthermore, I suggest you should visit https://check.spamhaus.org/ to check the status of your IP and, if necessary, request delisting from Spamhaus.