I can understand your feeling. The post below will help you how to deal your problem quickly.
It's so simple when you follow these steps.
Way to block junk mails
Step 1: Access your Outlook account.Step 2: Choose Junk emails and you will see a list of email addresses and domain from the senders. You just need to remove them.
Step 3: Now the Junk folder is clear of junk emails, and your selected email's sender is marked as a junk recipient.
You also could add some domains or email addresses in the safe sender list.






