On 2022-07-13 15:31:17 (+0800), Philip Paeps via mailop wrote:
In the past couple of days, I'm seeing an uptick in rejects from Gmail
as follows: [...]
As far as I can tell, the message is compliant. It doesn't have any
of the obvious problems, at least. From, To, Message-ID and Date are
supplied. No duplicate headers.
It turns out there was, in fact, a duplicate Date: header. Sigh. I am
blind. I was looking for duplicate To: headers, which are a lot easier
to introduce. I wonder how that happened.
Apologies for the noise.
(Still wondering if Google has gotten stricter though... As far as I
know, this commit mail script hasn't been touched in a very long time.
Though I won't exclude the possibility of something else in the mail
pipeline having changed.)
Philip
--
Philip Paeps
Senior Reality Engineer
Alternative Enterprises
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