On Sun, Mar 06, 2011 at 09:36:16PM +0100, JKL wrote: > Hallo everyone, > > I'd like to write a header_check that'll replace (or delete) the > User-Agent header, only if it comes from someone either sending on a > particular port, or using SMTP-AUTH.
SMTP is not HTTP. There is no "User-Agent" header in RFC 822 messages.
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Viktor.
