At 6:00 PM -0400 4/6/03, waltdnes(_at_)waltdnes(_dot_)org wrote:
Let me clarify this a bit. A bounce message should not be sent to
anybody *EXCEPT THE ACCOUNT THAT ORIGINATED THE EMAIL*. The only MTA in
a position to know this info is the the MTA at the sender's ISP (or
place of work or whatever).
First of all. Let's back up a bit, because I missed something fundamental.
Why are we trying to get rid of bounces?
1) Inbound relays is a design decision. It will have to change in
future.
Do you have any idea what might have led that design decision? Do
you have a reasonable alternative?
4) .forwards The risks of running a bot.
Bot? Who said a thing about bots? My root account has a .forward to
me. My webmaster account at a hosting provider has a .forward to me.
*All* of the aliases at one of my companies send to off-site
addresses. What, I'm supposed to run 50 different POP accounts?
WRONG. The *MTA* does that. An ISP knows who is logged on via which
IP address. Until such time as the email has been accepted by the
recipient's ISP's MTA, the email is still queued up on the sender's ISP.
They should be able to generate an *INTERNAL* bounce message *TO THE
ACCOUNT (not the address) THAT SENT THE ORIGINAL EMAIL*.
Okay, so we're going to rewrite every MTA in the world so that it
knows whether a message IN THE QUEUE was sent by an internal or
external sender. Because I seriously doubt any of them know now.
They know when they *receive* the mail, but not once they have queued
it.
Someone else already said words to this effect, but I'll repeat.
This isn't a minor change to the protocol. It's a fundamental change
to the entire infrastructure. You've changed the way everything
works in a fundamental and painful way. And given no thought to the
unintentional consequences.
--
Kee Hinckley
http://www.messagefire.com/ Junk-Free Email Filtering
http://commons.somewhere.com/buzz/ Writings on Technology and Society
I'm not sure which upsets me more: that people are so unwilling to accept
responsibility for their own actions, or that they are so eager to regulate
everyone else's.
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