We will show you how to block some emails addresses in Hotmail/Outlook mail.
Step 1: Log in your Hotmail account, using your Windows Live ID and password.
Step 2: Click on the Gear which is on the right corner, then choose "Options".
Step 3: The Options window will be presented. Let’s check the left bar, choosing Mail > Junk email > Blocked Senders.
Step 4: Enter the email addresses that you want to block and click on the next symbol.
Step 5: Choose “Save” to retain the changes to your block settings.