How do I get my iPhone to automatically update my emails?

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Tags

1. #settings
2. #automatically
3. #options
4. #instruct
5. #every
6. #contacts
7. #activate
8. #emails
9. #fetch
10. #buttons
11. #minute
12. #button
13. #hourly
14. #calendars
15. #alternatively
16. #appropriate
17. #iphone
18. #intervals
19. #minutes
20. #launch