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- Path: sparky!uunet!sun-barr!rutgers!ukma!morgan
- From: morgan@ms.uky.edu (Wes Morgan)
- Newsgroups: comp.unix.admin
- Subject: Re: Help Needed: How to send mail to "everybody" at once
- Message-ID: <1992Jul23.85024.26701@ms.uky.edu>
- Date: 23 Jul 92 12:50:24 GMT
- References: <1992Jul16.224234.13551@cco.caltech.edu>
- <1992Jul17.140319.23953@sdc.com> <TROST.92Jul21233312@romulus.reed.edu>
- Organization: The Puzzle Palace, UKentucky
- Lines: 41
-
- jafl@cco.caltech.edu (John Lindal) writes:
- >Does anyone know how to send mail to everyone on a particular system
- >without having to specify all the user names?
-
- AAAAAAAAAUUUUUUUUUUGGGGGGGGGHHHHH!
-
- John, this is one VERY EFFICIENT means of putting your personal fat in
- the proverbial fire. Mass mailings tend to put a significant strain
- on most systems, for several reasons:
-
- 1) The disk space allocated for mailboxes is shared among all
- users (on most Unix systems). Sending messages to, say,
- 1500 users will often fill up the "mailbox space"; as a
- result, NO ONE will receive any further mail until someone
- goes in and cleans it up. The administrators break out the
- hangman's noose and start examining return addresses.
-
- 2) Many mail programs spawn child processes to deliver mail. A
- mailing to 1500 people might result in 1500 delivery processes
- running within seconds of each other. The system slows to a
- crawl, and the administrators break out the hangman's noose and
- start examining return addresses.
-
- 3) Many users go for months without checking their mailbox. Your
- mass mailing might lie, unread, in the majority of mailboxes.
- The aforementioned "mailbox space" has less free space, and the
- administrators break out the hangman's noose.
-
- If you REALLY think that EVERY user should see your message, ask your
- admins to place it in /etc/motd or, if your system supports the news(1)
- command, /usr/news.
-
- Having just recovered from a mass mailing to 1800 users on one of my systems,
- I can tell you that this is a Very Bad Thing (tm).
-
-
- --
- morgan@ms.uky.edu |Wes Morgan, not speaking for| MORGAN@UKCC
- morgan@engr.uky.edu |the University of Kentucky's| ....!ukma!ukecc!morgan
- morgan@ie.pa.uky.edu |Engineering Computing Center| morgan@wuarchive.wustl.edu
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