Mail for a domain on several services?

Question

Mail server

We have mail from Mail.ru connected on the domain. We've been using it for several years now. And then the task arose to create 50 alias mailboxes . I did not find anything about aliases in the mail. I wrote to support, they answered "No more than 5 aliases per mailbox". The question arose, is it possible to have mail in one domain on several services at once? Let's say both on Yandex and on Mailra receive and send letters from domain mail? Or on your own mail server and Mailru at the same time? We won’t be able to refuse mail, in many places mail is connected for sending in services and there are too many employees, some will have a heart attack from the new interface at least.

Answer 1

You can have mail on several services, but either one (according to the priority of MX records) or several will work to receive letters (if there are several MX records with the same priority), but randomly.
That is, for example, they registered two records with the same priority, Yandex and mail ru, the letter will come either to Yandex or to mail ru.
If you tell me why there are so many aliases, maybe I will advise something

Answer 2

Read the manual from google
https://support.google.com/a/answer/9228551?hl=ru
Regardless of what mail systems you have, it will help you understand what logic of coexistence of two mail systems for one domain needs to be implemented.

Answer 3

You need your own mail server, then you can do whatever you want.
Well, about a heart attack - I would act through the authorities. And the higher it is, the better. Having enlisted the support of the authorities, I would have previously notified, including the "ill", that in a month or two we will switch to our own mailer.
Yes, the moment of transition will not be convenient, but feeding the mail provider is somehow stupid. This is provided that you really need what you are writing about

Answer 4

you need to move away from idiots - it's you, the technical support who answered like that and that * lucky who said the word "alias" (Bari AliAsov) and calmly solve the required task
or like this: https://yandex.ru/support/connect/aliases.html (especially about the group and department)
or other routing, where there will still be aliases, but for those who understand what they are doing,
and best of all - with their own server

Answer 5

No aliases can be created.
https://help.mail.ru/biz/domain/settings

You can specify an address to which all emails that can be sent to non-existent mailboxes on your domain will be forwarded.