From: Philipp Buehler (lists@fips.de)
Date: Mon Jul 29 2002 - 13:47:19 EDT
On 29/07/2002, Simon Waters <Simon@wretched.demon.co.uk> wrote To omegatron@hushmail.com:
> > While I'm at it... is there a way to restrict this information from outgoing messages when using Exchange? Saw a few messages last week that explained how to mask the Exchange server banner, but not for mail headers and such...
>
> I find running mail through Postfix and the following line in
> the badheader file....
>
> /^X-Mailer:.*/ ignore
Still leaves you with the Received: lines, which can be ignored that
way aswell.
> But that is technically an RFC infringement, as envelope
> elements are sacrosanct, but I guess that was more important
Actually this is not the envelope, and X- headers are subject to
ignorance anyway.
Filtering Received: headers is more of a problem, if you need
deeper debugging, but even this can be resolved.
And common security enforcements dont fit into the land of
common RFCs anyway :)
ciao
-- Philipp Buehler, aka fips | sysfive.com GmbH | BOfH | NUCH | <double-p> #1: Break the clue barrier! #2: Already had buzzword confuseritis ? ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
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