If you’re going to enter online sweepstakes, you should consider getting a new email account that you will use for this purpose only.
Online sweepstakes always ask for your email in order to contact you if you win a prize.
However, some of them also use it to send you newsletters, promotion, etc… also know as “Spam”.
So your email account will be filled with those and you probably don’t want them be in your personal email account.
Here are some email account providers: