There are many reasons for you not being able to send or receive emails in outlook and i will show you how to try and fix and resolve the outlook problem.
These are a list of the main reasons why you cannot send or receive email:
1. wrong username and password information.
2. junk mail filter setting
3. check email server settings
4. check firewall settings
5. remove old profiles and old accounts
6. create not email profile
7. clear outlook cache
8. corrupted email profile
9. bad email rule
10. outlook is set to work offline
11. no internet connection