spf-discuss
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Re: Changing the meaning of "mail from" is stillborn

2004-01-20 12:41:14
Za'mbori, Zolta'n wrote:
Steve +1 608 278 7700 wrote:

I'm suggesting that SPF be modified to compare the client IP address to
an address in a new SMTP service extension designed for that purpose,
*if* *present*, and otherwise against the envelope return address.

MAIL FROM:<AT envelope-sender:envelope-return AT example>

Perhaps the ESMTP 'Mail-parameters' of RFC2821 are a better way to do this than "source routing", since source routing will still mean something to non-modern MTAs.

To combine both ideas, in a way:

MAIL FROM:<envelope-return AT example> RESSEN envelope-sender

if the SMTP server offers the RESSEN extension.

--
Jim Ramsay
"Me fail English?  That's unpossible!"

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