[Mailman-Users] Mailman outside mails

[Kevin Moschallski]

Hi i installed mailman and it works realy nice when i subscribe or post 
messages localy.
but when i send a subscribe request to a mail adress wich is outside my 
server and it get fetched by fetchmail i dont get any mail back.when i 
read the log of my MTA (exim 3.x) i get this:

2003-06-26 14:18:52 19VViG-0005U0-00 <= 
cgi-mailer-bounces-73260835 at kundenserver.de H=localhost [127.0.0.1] 
U=root P=esmtp S=1386 id=E19VVhx-0006gf-00 at lieske-elektronik.de
2003-06-26 14:18:53 19VViG-0005U0-00 => |/usr/local/mailman/mail/mailman 
request reseller <reseller-request at localhost> D=system_aliases 
T=address_pipe
2003-06-26 14:18:53 19VViG-0005U0-00 Completed

but no answer recieves the subsciber.

any idea why this happens so?

greets Kevin Moschallski