[pfx] Re: simple content filter for outgoing message

[Scott Kitterman via Postfix-users]

On April 6, 2023 11:39:10 AM UTC, Corey Hickman via Postfix-users 
<postfix-users@postfix.org> wrote:
>Hello buddies,
>
>I just want to make some simple filters for outgoing messages.
>for example, the message content has some keywords (like "VPN sale") included, 
>it will be rejected by the system.
>
>I know there are the software Rspamd and Spamassassin, but they are too heavy 
>for my simple usage.
>
>Do you have any other ideas?

If you want a custom solution, a milter is probably the simplest way to get 
access to the message body.  There are language bindings for libmilter that 
make it relatively simple.  I've had a lot of success using pymilter and 
Python, but there are others.

Scott K
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