How to send a domain to hosting if the domain has already been delegated to Yandex servers?

Question

Domain Name System

There is a domain, in the panel of the REG RU registrar it is delegated to the Yandex DNS server for domain mail with DKIM.
Now I want to use this domain for an online store and delegate it to the host, but I don't want to lose DKIM.
Tell me, please, how can I delegate a domain to hosting and not lose DKIM (green checkmark and 1000000% avoid spam)?
I found something similar to the answer to my question in the Yandex FAQ , but I didn’t understand anything, because the teapot.
Help!

Answer 1

Just change/add an A-record on the Yandex Mail for Domain service.
Don't touch anything else. Otherwise, lose mail.
Yashin service is not only mail. This is 100% public DNS hosting. With all the consequences. Therefore, check out how the DNS service works before you start making changes there thoroughly :)
A - the record is the IP of your hosting @ - duplicate
it as an alias for www . Type - as it was said - A Record value - hosting IP

Answer 2

In DNS, write an A record from the IP of your server.

Answer 3

Let's do it. Your domain has been delegated to Yandex. From there you receive mail. You want the site to work on a third-party hosting, and the mail was Yandex.
An important point. Do you use your own mail server or are you fully hosted by Yandex?
In general, you need to create a second type A record that will lead to your hosting. At what the address should be different. For example, you change the name of your mail server to a third-level domain. Then edit the MX record to point to your new mail server address. Edit record type A for the mail server to a new name.
Thus, nothing will change outwardly for you, the site will respond to one IP address, mail to another, but from the "one" domain.

Answer 4

Search and search again :-)
Here about dkim Why do gmail messages go to spam?