On Thu 19/Mar/2026 09:02:29 +0100 Thomas Walter via mailop wrote:
In general I guess auto-replies should not be sent to emails containing
these:
Auto-Submitted: auto-generated
List-Id:
Precedence: bulk
Precedence: junk
X-Auto-Response-Suppress: All
X-Auto-Response-Suppress: OOF
X-Auto-Response-Suppress: AutoReply
Return-Path: <>
I do this:
Auto-Submitted: auto-generated
Precedence: bulk
X-Auto-Response-Suppress: DR,RN,NRN,OOF,AutoReply
List-Unsubscribe: <https://whatever>
List-Unsubscribe-Post: List-Unsubscribe=One-Click
Automatic replies come regardless.
With Return-Path: <> many appliances respond "550 #5.1.0 Rejected by bounce
verification." I think they assume it's a bounce and reject it because it
doesn't match anything they actually sent.
Bonus points for not replying to noreply@ or do-not-reply@?
Thunderbird actually implements this feature by asking if you are sure when you
try to reply.
Best
Ale
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