How to quit the Twins List

Send an email message to sympa@mymaillists.usc.edu (If your browser allows you to send email, just click on the link.)
Write UNSUBSCRIBE TWINS-L in the subject line.
Leave the message body blank.
Make certain that the message is being sent in PLAIN TEXT mode

You should get a confirmation message within a few minutes. If not, did you:

Send the message to sympa@mymaillists.usc.edu? Don't send it to the main list address.
Send the message from the account you're subscribed from? It won't work if you use a different account.
Make certain that the message is being sent in PLAIN TEXT mode?