How to bypass PTR record validation?

Question

Mail server

There are several sites that are running on a server in the office, served by the Beline provider. To work within the network, users need to send various notifications from the systems in which they work, they also want to send letters to subscribers (clients) to soap once a week with product catalogs or other information. All this could be implemented by raising your server, but the beeline does not give a normal reverse DNS (PTR record), i.e. it is there but does not look like a normal mail.mydomain.ru type, but just a generated string. Because of this, Google and some other mail services cut letters coming from the server with such a PTR.
In order for letters to come to all users, I sent via Yandex pdd, but there is a limit on sending outside.
Now I don’t know what to do, maybe there is some kind of service like Yandex PDD, with reasonable prices? Maybe there are vds with loyal prices? Any advice on what to do in my situation?

Answer 1

If the contract with the beeline is corporate, then try contacting their technical support - they will help. At the very one of the Beeline providers - they provide a reverse zone.

Answer 2

If you directly answer the question, then it is impossible to bypass PTR validation, since the receiving server does it. You can hardly influence its settings.
The solution is to negotiate with the owner of the IP range in which your server works and forgive him to register the reverse zone. Any normal provider does this, and often for free (the price is included in the cost of providing a dedicated IP).

Answer 3

Any VPS + Postfix (or any other MTA).
On mne.ru, for example, there is for 100 rubles, for your purposes for the eyes.
Or ask a smart-host from your beeline, promising not to send spam.