DNS hosting from Yandex: the length of the TXT record for DKIM is 255 characters, while Google gives a key 411 characters long. How to be?

Question

Google

I wanted Google to sign mail for the domain, Google gave me a key, the entire line with which (v=DKIM1; k=rsa; p=key) is equal to 411 characters.
Yandex says this in the dock
https://yandex.ru/support/pdd/domain/dns.xml
"TXT. When setting up a DKIM signature, the length of the TXT record value should not exceed 255 characters."

Answer 1

Yandex is quite jealous of the little things. write to them. I think that the answer will arrive within a day. if there are no problems, then they will go to a meeting

Answer 2

It is not clear whether the author wrote to Yandex, so I wrote. Let's see if there will be changes and what they will answer. The fact that the issue is more than 2 years old, and things are still there, is alarming.

Answer 3

Faced a similar problem. Posted in Yandex.
I really do not have Google, but mail on the hosting, but there is also a key in 411 characters.
So far I decided by sending from a subdomain:

• the subdomain itself on ns hosting;
  
• and on your hosting there are no restrictions on the length of the TXT record.