Thunderbird Configuration on Windows for Secure Mail
Set OpenPGP Options for your e-mail account
- Edit the new configuration option for OpenPGP Security under Edit | Account Settings (then Server Settings which corresponds to your e-mail account)
- Enable OpenPGP support
- The default Use email address of this identity to identify OpenPGP key is fine because GPG can lookup your Key ID from your e-mail address.
- Sign encrypted messages by default
- Use PGP/MIME by default (this is very important )
- Proceed to the Next step