Spam is really annoying. 

These tools are key to keeping your Outlook mailbox spam free: 

• Junk: The Junk folder is the default spam destination. Non-malicious spam and other marketing emails can be moved the junk folder. Sometimes emails are improperly labeled as junk and accidentally sent to the junk folder. It’s a good idea to review your spam mailbox periodically. 
• Flag: Emails can be flagged as either “junk” or “spam”. After an email is flagged, it is automatically transferred to the junk folder 
• Block Sender: Suspicious or unknown senders can be blocked. In the Outlook menu bar select Message > Junk Mail > Block sender. Outlook will then add the sender’s email to the “block sender” list.