The software that takes care of subscriptions and unsubscriptions is VERY picky about your e-mail address. For security reasons it will only pay attention to you if your E-MAIL ADDRESS MATCHES THE ONE YOU USED TO SUBSCRIBE. So if you change your e-mail address, move to another machine, or your university changes your mailing address on you, you should unsubscribe using the old address and resubscribe using your new address. The software is set up to try and use the most general portion of your address (i.e. ``gila.cisab.indiana.edu'' and ``indiana.edu'' should both be ok as long as your login_name has not changed) BUT the machine can not always figure all the different addresses out. Your address your address should be of the form:
login_name@hostname.domain
You can also subscribe and unsubscribe from a specific address by sending the command:
subscribe absnet login_name@hostname.domain
That will send a message to the maintainer of the server asking for approval so this route might take a day or two.
If you forget what address you used to subscribe with you can send the e-mail command to cisab:
which address or which name
But for security reasons you must be subscribed to the list FIRST.