Answer by Granwille for DKIM & SPF Allignment for Subdomains
After numerous research, I finally found the solution to my own problem. Looking over the sending logs for the domain, postman.example.com I found that the Sending Domain and From Address Domain did...
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We have a primary domain name example.com that has both adkim=s and aspf=s defined in its DMARC policy. Now, we have multiple subdomain names for this primary domain, such as postman.example.com. The...
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