Thanks for the ideas. Here's the answers:

1]      Chris:  the list always has been Subscription = Owner, and I have
never added anyone with the suspect address.

2]      Kevin:  this is the latest occurrence. It happens mostly with this
list, but also with other closed lists. What would constitute a clue?
Any message from that address?

3]      Rich:  There's no one named Steve on the list, and mostly we use
our yorku address or if not, then a cable connection - never msn. But
I'm inquiring from an Esteve, though I doubt it.

Thanks,
Michael




-----Original Message-----
From: LISTSERV list owners' forum [mailto:[log in to unmask]]On
Behalf Of Rich Greenberg
Sent: Friday, 20 April, 2001 11:52 AM
To: [log in to unmask]
Subject: Re: Unknown subscriber

The most common reason for this is that somebody has thier yorku
address
forwarded to the msn address,  and has cancelled (or msn screwed up)
the
account.

You could start out sending:

    Scan gradphil steve

to your listserv.

On: Fri, Apr 20, 2001 at 10:20:41AM -0400,M. A. Gilbert Wrote:

} Greetings. I'm a new list member, and have been lurking for a bit. I
} own about 16 lists, ranging from one of about 250 members, to
several
} quite smaller. I am the Computer Coordinator for the Department of
} Philosophy of York University, so I run the dept lists. Most of the
} department lists are private and composed of different groups, e.g.,
} the graduate faculty, or undergraduate instructors, etc.
}
} My question is this. I periodically receive a notice that there is
an
} error on an account that is not and, to the best of my knowledge,
has
} never been on the list. There are two concerns: security of the
list,
} and the annoyance of the error messages.
}
} Can anyone help?  The message is below. It is for [log in to unmask],
} and came as: GRADPHIL: Daily error monitoring report
}
} Thanks,
} Michael
}
} The following 1 subscriber is currently being monitored:
}
} Err First Last  Address
} --- ----- ----- -------
}   3 04/17 04/18 [log in to unmask]
}                 Last error: User unknown
}
} Err=   Number of delivery errors received thus far
} First= Date first delivery error was received (mm/dd)
} Last=  Date of most current delivery error (mm/dd)

--
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