Mail-from: BBN-TENEXA rcvd at 22-JUL-75 0617-PDT
Date: 22 JUL 1975 0904-EDT
Sender: MOOERS at BBN-TENEXA
Subject: MSGGROUP# 099 The Attention Subfield in The MAILSYS Address Fields.
From: MOOERS at BBN-TENEXA
To: [ISI]Mailing.List:
Cc: HENDERSON, RBRACHMAN, ULMER
Message-ID:
Reference: Kirstein "The Attention Field", Msggroup #82.
Discussion of Kirstein's message of July 7.
The problem is that one MAILBOX sometimes serves a group of users
or projects. How can the messages, as they arrive, be brought to
the attention of different users? And how can they be sorted out
at a later date?
There are three ways that the current MAILSYS system can handle
this:
(1) Use the KEYWORDS field to store the appropriate keywords,
names, names of projects, or whatever.
The KEYWORDS field takes a text string as its argument. The idea
is that it will usually consist of words, separated by commas,
but this is not at all required.
Ex: KEYWORDS: WHATZIT, WHOSIS
The KEYWORDS field can be displayed in a long-form SURVEY with
the command
>SURVEY,(CR)
>>KEYWORDS (CR)
>>(CR)
If you wish to search the KEYWORDS field with a READ or SURVEY
command, you can first set up a FILTER:
>FILTER (CR)
>>REQUIRE KEYWORDS (CR)
>>(CR)
Then you can perform the sort and store the selected messages in
a file with
>READ,(CR)
>>FILTER (CR)
>>OUTPUT (CR)
>>(CR)
The commands can be typed in the abbreviated mode, of course.
(2) Use the "Attention Subfield" of the MAILSYS address fields
(TO, CC, and BCC).
As currently implemented, the MAILSYS address field has the form
= , , ...
where
= @ ()
which is displayed as
Name at Host (Attn: Text String)
Ex: Mooers at BBNA (Attn: WHATZIT)
Until now, the documentation of showed the form
= @ (, , ... )
and the idea was (and is) that in future versions of MAILSYS,
could be the primary user assigned to a multi-user
MAILBOX, and the names in the parentheses could be secondary
users authorized to use the MAILBOX. Whether the secondary users
should be assigned identities in the system so that MAILSYS can
parse and check them in -- at least in the local directory -- is
an interesting point for debate.
At present, the attention subfield is available for any kind of
flag. It has the advantage of being in the TO, CC, and BCC
fields, where you would normally look for an addressee, and the
disadvantage that MAILSYS can't sort on it.
In the address fields, MAILSYS will FILTER only for address lists
and will not touch the stuff inside the parentheses, whether it
consists of duly authorized names or not.
Future versions of MAILSYS will certainly have to filter and sort
on the Attention Subfields of messages.
(3) It is also possible to put the attention flag at the
beginning of the SUBJECT field, e.g.,
Ex: SUBJECT: WHATZIT: More thoughts on the Attention Problem.
Then you can search for WHATZIT with a FILTER.
This has the advantage that the attention flag shows up on a
normal short-form SURVEY, and the disavantage that the subject
field is, perhaps, not a very logical place for an attention
flag.
I hope this clarifies matters. I have changed the on-line
documentation to reflect the system as it is now.
---Charlotte