"Jay R. Ashworth" <[EMAIL PROTECTED]> wrote:
> I don't see that there *is* any theoretical way to *keep* loads down
> with VERP, by it's very nature.
...
> If I'm sending 100 copies to @aol.com, without VERP, I send the message
> once.
>
> With VERP, I have to send it 100 times.
If one was willing to extend SMTP again, it would be theoretically possible
to send one copy of a message to aol.com for 100 recipients with a form of
VERP, using an extended syntax like
MAIL FROM:[EMAIL PROTECTED]
250 [EMAIL PROTECTED] Sender ok
RCPT TO:[EMAIL PROTECTED] EPFX:johnsmith-aol.com-
250 [EMAIL PROTECTED] Recipient ok
RCPT TO:[EMAIL PROTECTED] EPFX:joerandom-aol.com-
250 [EMAIL PROTECTED] Recipient ok
DATA
and the receiving MTA would prepend the EPFX value to the envelope sender
for each recipient.
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