Please correct me if I’m wrong.
If I add the public key provided by a third party sender in my domain’s DNS zone how will it exactly help in DKIM alignment?
Since the private -public key pair is generated by the third party, and they create the DKIM-signature and the d=tag contains the domain name of the the third party sender.
While the header from address is the actual domain address of the company(attained by spoofing which is expected as the email is send on behalf of the company.)
So in this case the d tag domain and the header address do not match/align . How can it be resolved?