Hi,
The email settings are same for Thunderbird, Outlook, Apple Mail cleits etc
https://support.symantec.com/en_US/article.TECH200766.html
The above article if for Apple mail but same settings work for Thunderbird and Outlook.
In PGP Settings make sure the following settings are used.
- Incoming Mail Server: * (just an star nothing else - this uses a wildcard)
- Outgoing Mail Server: *
Disable SSL/TLS in Thunderbird and make it automatic in PGP Settings.
Regards,
Sarfaraz Rahman