Great Circle Associates List-Managers
(August 1999)
 

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Subject: Re: Useless NDRs [Was: Nondeliverable mail]
From: Chuq Von Rospach <chuqui @ plaidworks . com>
Date: Wed, 25 Aug 1999 10:25:04 -0700
To: John R Levine <johnl @ iecc . com>, Miles Fidelman <mfidelman @ civicnet . org>
Cc: list-managers @ GreatCircle . COM
In-reply-to: <Pine . BSI . 3 . 91 . 990825113328 . 15310B-100000 @ ivan . iecc . com>
References: <Pine . BSI . 3 . 91 . 990825113328 . 15310B-100000 @ ivan . iecc . com>

At 11:39 AM -0400 8/25/99, John R Levine wrote:

The main reason that some people don't like them is that it requires that
each copy of a message be sent separately, rather than sending one message
per site with a bunch of addresses, which is alleged to be slower.  If you
have very large messages, a very slow connection, and lots of recipients at
the same placee (AOL maybe), that's probably true.  But for normal list
traffic, sending all of the messages in parallel is usually faster because of
decreased latency.

Depends. Another big slowdown is number of messages, since you're stuffing lots fo data into your mqueue (or mqueues), you start running into slowdowns based on directory size and/or disk I/O. It requires smarter delivery engines, either where your MLM does the SMTP stuff itself (as Infobeat does), or smarter queue management passing stuff off to sendmail (or whatever). Loading your outgoing queue directories into RAMdisk makes a huge difference, too...

It requires some more intelligence on the delivery engine, but if you do it right, it's possibly faster, and not really any slower. But you won't do it with a standard release of MJ, bulk_mailer and sendmail.

--
Chuq Von Rospach (Hockey fan? <http://www.plaidworks.com/hockey/>)
Apple Mail List Gnome (mailto:chuq @
apple .
com)
Plaidworks Consulting (mailto:chuqui @
plaidworks .
com) <http://www.plaidworks.com/> + <http://www.lists.apple.com/>

The Jedi that I admire most met up with Darth Maul and now he's toast...
   (Weird Al Yankovic - The Saga Begins)



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