Hi,
I am fighting with spam mails entirely encoded in base64 (UTF8). What's
the best way of blocking these mails using body_checks?
I understand from
http://www.postfix.org/BUILTIN_FILTER_README.html#limitations that I
need to base64 encode the input but is there a sample available
somewhere? I found some documentation (see
https://enc.com.au/2007/08/07/filtering-base64-encoded-spam/) but it did
not really work for me so maybe somebody can explain how he/she dealt
with such a problem before?
Many thanks.
Best regards
Sebastian