spf-discuss
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Re: Using headers instead of SRS

2004-01-20 20:28:10
To make myself clear, we're talking about changing the subject of
authentication from MAIL FROM envelope sender to header Sender.

This brings a number of benefits, including this one: postfix-users got
rather riled about changing the return-path, and this lets us keep them
happy.

This is not as major a change as it might seem.  In almost every case
I've seen so far, Sender: matches the return-path, and when Sender: is
not present, From: matches the return-path.  Is this true for you guys?

Justin, this may help with the SpamAssassin effort too.  Let me know
what youse guys think.

On Tue, Jan 20, 2004 at 09:48:49PM -0500, Meng Weng Wong wrote:
| 
| When using the envelope, we consider only the MAIL FROM return-path.
| 
| When using the headers, we would use one of Resent-Sender, Resent-From,
| Sender, and From, in that order.
| 
| A forwarder would add Resent-Sender.
| 
| The envelope sender address would remain unchanged from end to end.
| 

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