Re: IETF SMTP Working Group Proposal at smtpng.org

[Brad Knowles <brad.knowles () skynet be>]

At 12:55 PM -0400 2002/08/23, Greg A. Woods wrote:

>  All correctly implemented SMTP mailers _MUST_ modify the envelope sender
>  address when forwarding a message to the target address(es) of an alias.

	That's a new requirement in a new RFC.  How many sites are there 
in the world that run older MTAs that do not necessarily always 
implement this rule?  Indeed, are there any MTAs which exist today 
that enforce this rule in all cases?  Even if you do have an MTA 
which implements this rule, what if all you have is the alias, and 
there is no "-owner" or "owner-" address defined?


	So, you run a big site, with tens of millions of customers.  Are 
you going to tell them all to "piss off" if they're subscribed to a 
mailing list that is not implemented according to this rule?

        Riiiiiiiiight.

--
Brad Knowles, <brad.knowles () skynet be>

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
    -Benjamin Franklin, Historical Review of Pennsylvania.

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