MicrosoftMicrosoftI would also to better understand this Puneeth. The language "Compliant P2 (Primary) Sender Addresses: Ensure the “From” or “Reply‐To” address is valid, reflects the true sending domain, and can receive replies" is a bit confusing. Does this mean both the From and Reply-To need be valid, or both? We employ a "no-reply" reply-to address, as I'm guessing quite a few other bulk senders do.
We also use a marketing sub-domain of a corporate domain. The corporate domain is used for personal email addresses and thus obviously is a valid address. Does that mean we would not have issues?
MicrosoftThis is regarding RFC compliance. We have observed that many senders are using non-RFC-compliant P2 sender addresses, either unknowingly or for questionable reasons. Recent developments on this topic are discussed in Our New Approach to Non-RFC Compliant Emails blog. In the future, we may start blocking these emails, so as a general recommendation, we encourage all senders to ensure their P2 sender addresses comply with RFC standards.
Greetings Puneeth,
Except for DKIM, our SMTP server has: rDNS, TLS, SPF and DMARC and even with this configuration, it passes any online DKIM validation configuration, could you please tell me which RFC describes the use of DKIM as mandatory? We have been experiencing this incident of hotmail.com domain rejecting our emails since June 13th.
Thank you.
