Are text messages saved forever?

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Tags

1. #carriers
2. #users
3. #there
4. #forever
5. #server
6. #messages
7. #between
8. #phone
9. #probably
10. #exceptions
11. #every
12. #although
13. #carrier
14. #amount
15. #enormous
16. #message
17. #permanently
18. #deleted