The following terms apply to any free email services offered by us. You must use your email account regularly to keep it active. We reserve the right to cancel any free e-mail account that is inactive for more than 30 days, and any data on a deactivated account may not be retrieved later. You are solely responsible for backing up and archiving any important email. Any premium email product may be subject to additional terms."
i've been thru the aol terms and conditions and it says they can close your email account if they want to due to cancellation of your aol account so i presume they just don't bother to do so.it also says they can close the account if it is inactive for 90 days.