[Mailman-Users] Entry for aliases file

i had an copy + paste in the mail sent: 23.01.03 01:13 sent by me (Chris
[www.LiFEFORCE.de])

i think the problem is not to sent something, because the mail to submit my
subsciption is sent to me.. but when i answer nothing happens. so maybe the
cron-jobs ?! where is an howto? or the fetchmail... my question first of
all: why are theese mails skipped?