Am 17.09.25 um 08:55 schrieb Arrigo Triulzi via mailop:
Replying to my own message …
On 16 Sep 2025, at 16:33, Arrigo Triulzi via mailop<[email protected]> wrote:
* the Message-Id is invalid
This is because they put a newline between the header ID and the header, e.g.
Message-ID:
CommentMentionWord-d5f9b97d-c66e-491a-a701-34847b35ab80-a28d843e-d597-464e-a0cf-23b0c01eadc9-r0-SendEmail-UpdateActivity-rh_neu-aid_6610d7df-63e5-46ef-bd0c-448e18558d2b@odspnotify
If this is indeed exactly as you write, it would be invalid. However, I suspect that the line break is either inserted
by whatever tools you use to look at the headers, or that there was a white space after the line break, which would be
correct formatting for long headers. Bastian has pointed out another Message-Id format problem, which may as well be the
real cause for SpamAssassins verdict.
Since Message-Ids are often bad-formed, and the FORGED_SPF_HELO check does not really match the intent of SPF (how badly
designed SPF may be), using these checks seems overly zealous to me. Of course, you can use them for scoring, but then
you should not set the limit too low.
Cheers,
Hans-Martin
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