"LISTSERV list owners' forum" <[log in to unmask]> wrote on 
08/22/2005 07:43:48 PM:

> I have a small (50+) listserv of mostly people from state health 
> departments.  I have one subscriber who I see as subscribed to the list, 

> but she isn't receiving any of the listserv messages.  She's checked 
> with her michigan.gov IT people and they tell her that they aren't 
> blocking any messages from the listserv.  I'm am also not getting bounce 

> back messages from her account when a message is sent to the list.
> 
> Any suggestions on what else I should be doing?

First, I assume you can send her regular email without difficulty?? 

Others have chimed in with some good advice on how to approach this from 
the Listserv end.  As a mail admin first and a Listserv site manager 
second, I would start by looking at the server logs.  If you don't have 
access to them, you will need the help of your site manager, and possibly 
the system admin of any mail relays used by the Listserv server. 

If you can, get copies of the relevant server log entries to send to the 
staff at michigan.gov to show that your site is delivering the messages. 

One other test I've used in the past is to send a message to a totally 
bogus user, ie [log in to unmask]  That should bounce 
(although many ISPs now drop mail for unknown users in violation of the 
RFCs).  Try subscribing that same address to the list and see if it comes 
back...  If it doesn't you haven't really learned anything new, but you 
haven't lost anything.  If it gets returned with an unknown user error, 
then you know that the messages are getting to the destination, and then 
vanishing.

I just thought of this:  Also, is it possible that this user has a mail 
rule that could be clobbering them?  I recent had an issue where someone 
stopped recceiving *SOME* mail from his boss.  Turns out he had a mail 
rule to delete messages containing a certain four letter word stating with 
"a".  He then added "Programmer Analyst" to his signature block and no 
longer received replies that included his original message.  OOPSIE!! 
Other examples I have seen were blocking the string "cialis" which hit on 
the word "specialist" and the town government of Cunthorpe Englnad had a 
huge problem with simplistic mail filters. 

Good luck!!