Can GMail send ProtonMail?

Related questions

1. Why is ProtonMail secure?
2. What is ProtonMail visionary?
3. Is ProtonMail really encrypted?
4. Does ProtonMail support IMAP?
5. Can you get hacked by responding to an email?
6. What is ProtonMail used for?
7. Does ProtonMail log IP?
8. Is ProtonMail more secure?
9. Can I use ProtonMail with Thunderbird?
10. Can you use ProtonMail with Outlook?

Tags

1. #encrypted
2. #single
3. #never
4. #users
5. #account
6. #security
7. #probably
8. #depends
9. #mails
10. #recipient
11. #offers
12. #google
13. #messages
14. #specific
15. #function
16. #protects
17. #gmail
18. #external
19. #protonmail