CentOS + VestaCP + DKIM = some garbage :) How to fix it?

Question

CentOS

Hello.
There was an invincible problem with which I can not cope in any way.
I sign letters via DKIM, on CentOS and VestaCP.
The signature is correct, as indicated by the records testing service.

Here's what comes in the mail.

As far as I can see, the signature is not added correctly ...

But the letters are still signed with an error.
Perhaps someone has already encountered setting up this bundle and won?