Comcast does not offer "stand-alone" email service; it is only provided in conjunction with internet service. Prior to canceling your service, you should take action to notify all senders of your new email address. While your email account may remain active once your internet service is deactivated, there is no set amount of time that it will remain active and it may be shut off at any time. One should assume that it will be shut off when your service is shut off. ... View more