Why pop3 is used?

Related questions

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7. What is SMTP relay service?
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Tags

1. #protocol
2. #internet
3. #email
4. #remote
5. #supported
6. #accessing
7. #commonly
8. #client
9. #modern
10. #local
11. #protocols
12. #message
13. #server
14. #clients
15. #retrieving
16. #access
17. #emails
18. #servers