How to make sure that mail is always sent normally from the UAE?

Question

Mail server

I am in the UAE, I need to communicate with the world through email. There is a mail server at a hoster in the Russian Federation, there is also a website.
When sending mail, mail often does not go away, especially if there are attachments. The hoster says that the problem is that the communication channel is bad, the ping is more than 200 ms. If I write letters from mail to gmail.com, everything is fine.
What are the options to use @mydomain.com work mail and not have delivery problems? Changing the host is not an option, there are other necessary mailboxes on this domain.

Answer 1

Register the mail domain on GMail'e
That is - @ mydomain.com mail will physically live on the ZhMail servers. VEB Interface - ZhMzyla.
It seems that now it has become paid.

Answer 2

In the emirates, GBesniks intercept outgoing mail extremely clumsily, it is best to send it to your server via SMTPS ports (587 or 465)