MicrosoftMicrosoftHi Puneeth!
What do you mean by "Ensure the 'From' or 'Reply-To' address can receive replies"?
It's clear why P1 addresses need to be able to receive replies, but it's a bit confusing to ask this for P2 addresses. This implies that a P2 address like noreply@ needs to have an inbox. Is it really what you mean?
If not, is it necessary and sufficient for the P2 domain to have a DNS MX record?
When we say "Ensure the 'From' or 'Reply-To' address can receive replies", we’re primarily focused on improving deliverability and maintaining compliance with modern email best practices, especially with providers like Microsoft and Gmail tightening sender authentication and anti-spam rules.
What it really means:
For P1 (envelope sender / Return-Path) addresses — yes, they must be able to receive bounces and other system responses. This is essential for proper email feedback loops and handling rejections.
For P2 (header From or Reply-To) addresses — the requirement isn’t always strictly about receiving mail, but about appearing legitimate and routable.
So, while a email address removed for privacy reasons might technically be acceptable, it should still meet these two conditions:
Please feel free to email me at j a i s u n d a r 2 0 2 5 @ o u t l o o k . c o m so we can discuss this further in detail.
