Re: base64 html page in headers

Vincent Lefevre <[email protected]>
Newsgroups gmane.mail.spam.spamassassin.general
Message-ID <[email protected]> 
On 2025-01-24 13:03:42 +0000, Marc wrote:
> Afaik you use mime mime headers to separate txt and html version of
> the email. I was wondering if this is a new trick to bypass spam
> detection, and if spamassassin decodes these blocks.

There are more and more legitimate messages encoded in base64
(including for text/plain). :( For instance, the messages in the
tinycc-devel mailing-list are converted to base64. Some software
that adds a "DKIM-Signature:" header seems do to that too. Gnus
may generate base64 text/plain.

-- 
Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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