Re: post-SRS SMTP extension for anti-spam tools/methods

On Sun, Feb 15, 2004 at 10:54:47PM +0100, Za'mbori, Zolta'n wrote:
| SRS is a "quick hack". A long term solution can be an SMTP extension 
| supporting envelope filtering anti-spam tools/methods.
| 
| 
| My idea is two additional MAIL command:
| 
| MAIL SNDR:<initial-envelope-sender-address>
| MAIL FROM:<current-sender-address>
| MAIL RTRN:<envelope-return-address>
| 

Yes, I agree that something like this will be needed in the long run.
In general we want to add richer information before DATA.  See this:

http://www.ietf.org/internet-drafts/draft-klensin-email-envelope-00.txt