This must depend on the users e-mail system. I send out monthly list
guidelines reminders to 5 lists, some get copies for each list they are
subscribed to, some get just 1 copy. 

Ronnie Streff
Communications & Technology Specialist
American Medical Writers Association
40 West Gude Drive Suite 101
Rockville,  MD  20850-1192
(301) 294-5303; fax (301) 294-9006
[log in to unmask]
www.amwa.org

I'LL SEE YOU IN LOUISVILLE
October 23-25, 2008
AMWA's 68th Annual Conference 
Setting the Pace
"Greatness is not where we stand but in what direction we are moving."
Oliver Wendell Holmes


-----Original Message-----
From: LISTSERV list owners' forum [mailto:[log in to unmask]]
On Behalf Of Mariann
Sent: Thursday, January 10, 2008 8:49 AM
To: [log in to unmask]
Subject: How does Listserv handle duplicates?

Does anyone know anywhere in the Listserv documentation where it deals
with
how Listserv handles duplicate mailings?  For example, a user sends a
message from Outlook, and adds the names of several lists to the TO:
line,
if a subscriber is a subscriber to more than one of the lists, will the
user
receive duplicate mailings?  I have tested it on some of my test lists
and
it looks like the answer is yes, the subscriber will receive more than
one
posting?  However, I have a user who insists that his experience is that
he
only receives one copy.  Does it matter if the user is subscriber to all
of
the lists but is also the poster?  I know using sub-lists will preclude
the
duplicates but many of my users simply string many list addresses in
their
mail clients.  Does anyone know if this is discussed in any of the Lsoft
documention?

TIA