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25 Nov
2020
25 Nov
'20
10:37 a.m.
Hi all,
I've installed my reverting DKIM verifier. Today it failed on a specific message which I also received directly. The reason it failed is the Subject: field was rewritten like so:
ORIGINAL: Subject: RE: [dmarc-ietf] A policy for direct mail flows only, was ARC questions
REWRITTEN: Subject: Re: [dmarc-ietf] A policy for direct mail flows only, was ARC questions
The message is tagged X-Mailman-Version: 2.1.29. Is it Mailman doing that change? I found some code which may seem to be doing something like that in CookHeaders.py:
rematch = re.match(
'(\s*(RE|AW|SV|VS)\s*(\[\d+\])?\s*:\s*)+',
subject, re.I)
if rematch:
subject = subject[rematch.end():]
recolon = 'Re:'
It seems I have to save the subject if it matches that string, correct?