On 19 March 2002, dman said:
> A simpler approach :
>
> If you're using exim 3 put
> headers_check_syntax = true
> in your config file.
>
> If you're using exim 4 put
> require verify = header_syntax
> in the acl_smtp_data ACL.
Yes, those can both be useful. I've been using headers_check_syntax on
one system for about a week now, and probably 50% of the traffic it
bounces is spam; probably 30% is ill-formed bounce messages, and the
rest is regular, legitimate (but ill-formed) mail. We can live with
bouncing legit but ill-formed mail, but not all sites can. And of
course, not everyone uses Exim.
Furthermore, I recently got a spam with a syntactically correct
"undisclosed-recipients"-style "To" header. I never get that kind of
mail legitimately, and even if I did, so what if it scores 0.5 or 1.0
points?
Greg
--
Greg Ward - software developer [EMAIL PROTECTED]
MEMS Exchange http://www.mems-exchange.org
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