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Path: utzoo!watmath!clyde!bonnie!akgua!glc
From: glc@akgua.UUCP (G.L. Cleveland [Lindsay])
Newsgroups: net.mail
Subject: Re: Sending multiple copies of mail once
Message-ID: <1472@akgua.UUCP>
Date: Tue, 28-May-85 21:50:14 EDT
Article-I.D.: akgua.1472
Posted: Tue May 28 21:50:14 1985
Date-Received: Thu, 30-May-85 04:29:49 EDT
References: <529@petsd.UUCP>
Organization: AT&T Technologies/Bell Labs, Atlanta
Lines: 72

>As moderator of the mail.compress discussion group, I often need to send a
>rather large message to many recipients like this:
>
>	To: v!x!y!z, v!a, v!x!a, v!x!g!a, ...
>
>My problem is that my mail handler (MH) or /bin/mail sends multiple copies
>of my message to system "v" instead of just sending one.  This causes system
>"v" to send multiple copies to system "x", etc.
>
>This greatly increases the cost (to many) of my mail-outs.
>
>Any suggestions?  Please send email; I will summarize.

Since this is used quite a bit, I though I would post a small bit
of enlightenment.

The "vanilla" UNIX mailer uses the "uux" command for mailing to
and/or thru a remote site.  When it gets arguments of:

     mail site1!x site1!y site1!z site1!site2!r

it internally generates the following:

     uux - -n site1!rmail x <temp-file-with-mail-text
     uux - -n site1!rmail y <temp-file-with-mail-text
     uux - -n site1!rmail z <temp-file-with-mail-text
     uux - -n site1!rmail site2!r <temp-file-with-mail-text

This makes uucp send four copies of the mail text to "site1".

 If you want to send to more than one user at one site, the
method below could be used:

    mail site1!'x y z'

which results in /bin/mail executing the following:

    uux - -n site1!rmail x y z <temp-file-with-mail-text

The above ends up sending only one copy of the mail text.

 For mail passing thru one site to another, the quoting still does
the job for you:

    mail site1!'x y z site2!r site3!s'

which results in /bin/mail executing the following:

    uux - -n site1!rmail x y z site2!r site3!s <temp-file-with-mail-text

 I have tried the above samples on my systems and they work as
shown.  We are running System V, Release 2.0 on AT&T 3B20A's.

 Multi-hop mailing makes for somewhat more complicated quoting, and
different versions of "shell" may mess up your plans there, so I
won't try to suggest anything as unwieldly as:

    mail site1!'site4!\\\"t u site5!v\\\"'
or
    mail site1!'site4!t\\ u\\ site5!v'

because it doesn't work on my systems and I don't have the time to
experiment with what would work.  I'll leave that for some of the
really expert wizards!

 Hope this helps a bit.

Cheers,
  Lindsay

Lindsay Cleveland  (akgua!glc) (404) 447-3909   Cornet 583-3909
AT&T Technologies/Bell Laboratories ... Atlanta, Ga