I've also been receiving a bunch of the mcimail.com error messages with
the statement about envelopes.  I sent back to the sender asking what it
meant and received this response.
----------------------------Original message----------------------------
Received: from MIZZOU1.MISSOURI.EDU (LISTSERV) by MIZZOU1 (Mailer R2.10 ptf000)
 with BSMTP id 2482; Tue, 14 May 96 08:24:25 CDT
Date:         Tue, 14 May 1996 08:24:25 -0500
From:         "L-Soft list server at MIZZOU1 (1.8b)"
              <[log in to unmask]>
Subject:      Output of your job "ELSPAULA"
To:           Paula Roper *AFAM-L  African-American Research  Group List
              <[log in to unmask]>
 
> I really don't understand what is happening here.  Could you explain?
Extraneous parameter - "DON'T".
 
> Paula
Unknown command - "PAULA". Try HELP.
 
Summary of resource utilization
-------------------------------
 CPU time:        0.005 sec                Device I/O:        0
 Overhead CPU:    0.004 sec                Paging I/O:        2
 CPU model:        3090                    DASD model:     3390