Re: [leafnode-list] Re: Spam

["Mike Vanecek" <leafnode_lists@xxxxxxxxxxxxxx>]

On Wed, 02 Apr 2003 11:04:33 +0200, Matthias Andree wrote
> "clemens fischer" <ino-qc@xxxxxxxxxxxxxxxxxxxxxx> writes:
> 
> > "Mike Vanecek" <leafnode_lists@xxxxxxxxxxxxxx>:
> >
> >>> Just "X-Archive: encrypt" in the header will to the job
> >>
> >> I guess I need to do is figure out where sendmail allows one to
> >> insert custom headers.
> >
> > not sendmail.  your MUA (user agent) puts this header into user
> > headers, sendmail only handles envelopes, because it's a transport
> > system.
> 
> Not quite. Sendmail treats envelope and header addresses the same and
> can manipulate addresses in the header. It is also susceptible to
> "attacks" through specially-crafted headers, on the cause of
> implementation defects (such as assuming char is unsigned, see the
> 8.12.9 changelog).

Finally figured out where to put it sendmail.cf. I know it works going out;
have not tested it in a reply yet.

Thank you for the help.

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