On Fri, Jul 10, 1998 at 06:48:24PM -0500, Dave Sill wrote:
> Sure it does. Three reasons off the top of my head:
>
> 1) Allows VERP (variable envelop return path), whereby a bounce
> identifies the (message, recipient) pair that was undeliverable,
> enabling sophisticated bounce handling.
> 2) SMTP is a high-latency protocol. A message to five recipients can
> be delivered faster by five parallel sessions than one session with
> five devlieries.
One thing to consider: Many large mail servers (such as those
used by large ISPs) have what is known as a 'single copy message
store', so that if a message comes in for more than one
recipient, the message is only stored once (and only takes up
disk space once) and then it is 'linked' into the other
recipients' mailboxes.
If I were managing the mail service for a large ISP (which I do),
and I was using a mail server with a single copy message store
(which I'm not, currently) I'd be very concerned about the way
qmail-originated messges take up more spool space than a message
that originated from a different MTA.
Jeff
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