> > It's possible to unsubscribe e-mail addresses without the subscriber > authorization, simply sending an e-mail to the list with the > unsubscribe command? > Yes, if the address can be forged to look like it came from the correct user and your list header keywords allow it. > It's possible to deactivate this possibility? > Without seeing your list header the best suggestion would be to code in Validate= All,Confirm. This should force an UNSUBSCRIBE command to either require a personal password or go through an OK Confirmation. Note that the Validate= keyword can behave quite differently depending on what's already in the header so make sure you read up on it in the List Owner's Manual first. -- Chazzozz!! Michael Shannon Webmaster [log in to unmask] "Before you can grow old and wise you must first survive being young and stupid." - Ancient Proverb Note: Opinions expressed on this list are my own and do not reflect the views, opinions or position of my employer. If swallowed, seek medical advice.