Is previewing an email the same as opening it?

Related questions

1. What is CTF security?
2. How is PWN pronounced?
3. Can someone hack your email?
4. Why is it spelled Pwned?
5. Why do hackers want your email address?
6. What is a pwned password?
7. What is PWN CTF?
8. Can someone hack my phone by texting me?
9. What is a data protection breach?
10. Can a smart TV be hacked?

Tags

1. #advice
2. #there
3. #attachments
4. #vulnerable
5. #outlook
6. #answer
7. #emails
8. #regarding
9. #these
10. #vulnerabilities
11. #preview
12. #originally
13. #still
14. #previewing
15. #contained