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 <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)