I think, through the help of Valdis, that I've tracked the problem to the
user's email system.  Every email that has been sent to them gets a "posted
to the list" from Listserv and "250 ok" through LSMTP.  So I contacted their
provider (evenlink.com) and am waiting for an answer.

Thank you to all that responded.  If this doesn't turn anything out, I'll
probably be back begging for more help ;-)

Conor

-----Original Message-----
From: Pete Weiss [mailto:[log in to unmask]]
Sent: Thursday, February 14, 2002 2:35 PM
To: [log in to unmask]
Subject: Re: Email addresses being blocked?

Also have the subscriber mail LISTSERV@listhost

thanks
info
q LISTNAME

I guess is would not hurt for you to issue

SERVE user1
SERVE user2

At 14:17 02/14/2002 Thursday, Valdis Kletnieks wrote:
 >Start checking your logs.
 >
 >1) Check listserv.log - did Listserv actually *send* them a posting?
 >
 >2) Check your listserv's MTA logs - did it receive the posting from
listserv?
 >
 >3) Check your MTA logs - did it forward the posting to another
server?  If not,
 >why not?  If it did, what server did it send it to?
 >
 >4) Contact the owner of THAT server.
 >
 >5) Repeat 3 and 4 until you either find the mail, or an explanation.