Fortunately, Hotmail enables you to add any contact to the Blocked Senders List, effectively blocking that person from sending you any emails. Many emails come from the same contacts, so you should block them to stop the spam. Type the email address or domain that you want to block, then press Enter.Click ‘Add’ under ‘Blocked senders and domains’.Type ‘blocked senders and domains’ into the search field and open the Blocked senders and domains options.Click the Settings cog wheel on the top right of the screen.The messages you select will be deleted and all future messages will be blocked from your mailbox. From the top toolbar, select Junk > Block (or Spam > Block). To block someone in, select the messages or senders you want to block. How do I block a sender in Hotmail Outlook? Enter the email address or a domain in the box labeled Blocked email address or domain.Under Preventing junk email, click Safe and blocked senders.Click the gear icon at the upper-right side of the page.How do I permanently block an email on Hotmail? 18 How do I block emails in Outlook 2020?.16 Can you stop someone from emailing you?.13 How do I block a email with no sender address?.