Hi & Welcome to the site.

Really big wins will usually contact you by postal mail or telephone. Usually winnnings that total approx. $500 or more will be preceded by an
affidavit. Affidavits will usually be sent register postal mail or fedex.

Smaller wins will come by email. The best way to handle this is to scan
through it by subject line as often as possible, deleting anything you don't
want to read.

If you have spam handling software you can most times configure your
spam software to accept email from only known good domains. This can get complicated.

I know many of our members use Yahoo or Hotmail accounts for their
Sweepstakes entry email so that it does not clutter up their own personal email inbox. We have our own free email on the site too.
 :D