Faced with a confusing situation:
The domain is registered by a first host (1Gb)
Website is hosted at a second host (Spaceweb)
The mail server leased from a third host (Masterhost)
Task: to configure DKIM for mail.
1. In control panel Masterhost subscribe to a service, get the public key.
2. In the DNS settings of the first host(1Gb) make a txt record with DKIM public key.
3. Test a few services and always show the error DKIM (DNS Record not found, DKIM Result: permerror (no key), etc.), and as the answering service is the second (Specweb).
Please help me to understand. How to configure DKIM in this configuration.