Why wont my emails send from my iPhone?

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Tags

1. #account
2. #server
3. #settings
4. #email
5. #under
6. #scroll
7. #bottom
8. #contacts
9. #field
10. #touch
11. #screen
12. #outgoing
13. #again
14. #select
15. #iphone
16. #following
17. #calendars