How do I report junk mail (spam)? We've made it easier to report junk e-mail direct from your inbox and every report you make will actually improve the intelligent filters that protect your account. Sign in to Hotmail and click on the Mail tab to open the inbox. Select an e-mail you suspect to be junk (spam). Tip - a question mark is placed on all e-mail from unknown senders. Click the Junk option and select from either Report or Report and Block sender, and then simply follow the directions given.