Date   : Mon, 20 Dec 1982 01:13:00-EST
From   : Frank J Wancho <FJW@Mit-Mc>
Subject: [Pleasant: Warning messages from system mailers]

What Mel says below goes double for Keith and myself in our
maintenance of INFO-MICRO and INFO-CPM.  So, rather than steal Mel's
message and put our names on it as our own, here is the original:

Date: 19 Dec 1982 2114-EST
From: Mel <Pleasant at RUTGERS>
To:   ProtocolS at RUTGERS
Re:   Warning messages from system mailers

Hi Folks,      
       Many times after you send a message to this list, one of the
many system mailers that the message will pass through will inform you
that the mail has yet to be delivered to a recipient on the list.
These are just an informational messages.  Most of the system mailers
are pretty robust and will try several times before giving up.  Please
do not forward informational-type messages to me.  The only time I
need to know about a mailer error is when the entire message is
returned to you with some indication that a system mailer has given up
trying to deliver the mail.  This generally happens when a recipient's
mailbox has been removed (the user is no longer on the system), or the
mailer suffered some sort of catastrophe.  Please continue to let me
know about hard errors.

-thanks
-Mel (ProtocolS Moderator)