Great Circle Associates List-Managers
(May 1995)
 

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Subject: Re: Purpose of digests ?
From: dattier @ wwa . com (David W. Tamkin)
Date: Mon, 15 May 1995 14:52:01 -0500 (CDT)
To: Cormack @ cardiff . ac . uk
Cc: list-managers @ greatcircle . com
In-reply-to: <Pine.OSF.3.91.950515151016.22021B-100000@thor> from "Andrew Cormack" at May 15, 95 03:21:59 pm

Andrew Cormack made the following comment about digests:

| The reader of digest list thus gets an even larger hit on their 
| mailbox than the reader of the un-digestified list though at longer 
| intervals.

Not true. 

First, there are fewer SMTP connections if a digest has at least two
articles;

Second, if the digest issue contains at least three articles, the reduction
in mail header text more than compensates for the addition of a table of
contents;

Third, on some systems users are limited in the number of mail items they
may receive or store as well as (or instead of) by the byte count of their
mailboxes, and digests help them stay under quota;

Fourth, on systems that charge for receiving email by the byte count of the
incoming letter, invariably there is a block size, and you pay for whole
blocks, the final fractional block of the letter costing you the same as
a whole one.  For such subscribers, digests are a godsend because fewer
fractions are wasted.


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