At 3:48 PM -0000 11/29/96, Eric Thomas wrote:
>>Lyris does the same thing. Messages to the same domain are grouped
>>together and sent in many fewer SMTP sessions.
>
>But it doesn't offer any speed-up, since you need to resend the entire
>message data every time, ie MAIL FROM, RCPT, DATA, MAIL, RCPT, DATA and
>so forth. It also means Lyris will require significantly more bandwidth
well, saving on the number of connection setups DOES count. It's
just that it doesn't count as well as massively reducing the number of
MESSAGES.
it occurs to me that the counter to some of our complaints about
one message per receipient is that many lists have little aggregation by
domain or host, so that one might end up having to send very nearly one
message per recipient anyhow... I know that there are no other members of
this list at brandenburg.com. If the list manager is really clever, it
will discover that the physical machine to send to is ng.netgate.com and
will try to aggregate on that; but I doubt there are many recipients for
list-managers on that machine, either.
sigh. not only is it tough to get good performance, it's tough to
get good performance when TALKING about good performance...
d/
--------------------
Dave Crocker +1 408 246 8253
Brandenburg Consulting fax: +1 408 249 6205
675 Spruce Dr. dcrocker@brandenburg.com
Sunnyvale CA 94086 USA http://www.brandenburg.com
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