At 10:44 29/12/2003 +1000, Peter Kiem wrote:
> Just a guess ... because the "From" address is not
> "[EMAIL PROTECTED]"?

I thought the from rule worked on the envelope sender of the email and not
the easily forged from header :(

You mean on the easily forged envelope sender instead of the easily forged from header ? :)


Envelope sender is just as easily forged as the head from address, both are provided by the original SMTP sender...

*Everything* on an email is trivially forgable except for the transit header added by the *final* mailserver, which includes the ip address of the server immediately prior to it.

Once you realise this, you can see how whitelisting is easy to fool...(and why spammers have a field day including bogus headers...)

Regards,
Simon



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