After joining you might want to change your options to receive the list in "Digest" format. Selecting that option will limit your e-mails from the list to one a day, with all the messages for that day contained on the message. Otherwise you will get an individual e-mail each time that someone posts to the list. Additionally, if the digest format still brings more e-mail than you want to handle, you can choose to read the discussions from their web site.