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

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