Can not send email with opera mail and windows 8.1

Frustrating!

I'm here to help you troubleshoot the issue. Let's go through some steps to resolve the problem:

1. Check Opera Mail settings:

2. Check email account credentials:

3. Check Opera Mail version:

4. Disable any third-party extensions:

5. Check Windows 8.1 firewall settings:

6. Check for conflicts with other email clients:

7. Reset Opera Mail settings:

8. Reinstall Opera Mail:

If none of these steps resolve the issue, please provide more details about the error message you're seeing, and I'll do my best to help you troubleshoot further.