On Thu, 25 Aug 2005, Gary Allen Vollink wrote:
> If I am about to send out an Email that I'm relaying (based on
> Authentication), I was thinking that it would be useful to delete the
> "Received: " header lines (which in this case, is usually the ISP
> connected employee laptop that has just authenticated to me).
It's not really a good idea to do this because Received: lines are a
useful diagnostic tool. Exim records the fact that message submission was
securely authenticated in the Received: line using the text "with esmtpsa"
(s=TLS, a=AUTH) which software like SpamAssassin will recognize and
therefore not apply RBL checks to the IP address in the line. RFC 3848
describes the esmtpsa keyword and also encourages postmasters not to
lobotomize trace information.
Tony.
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