What is the purpose of MX records?

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Tags

1. #specifies
2. #recipient
3. #server
4. #servers
5. #resource
6. #messages
7. #accepting
8. #domain
9. #multiple
10. #value
11. #wikipedia
12. #email
13. #responsible
14. #preference
15. #record
16. #exchanger
17. #behalf
18. #system
19. #delivery
20. #prioritize