[Dovecot] thunderbird sane config (OT)

[rosenfield.albert at gmail.com]

Thanks for all the responses.

The simplest approach in my situation seems to be the XPI one, where
users can install an XPI into Thunderbird and get a template that
requires only entering username and password.

Haven't figured how to put the CA certificate that Dovecot uses for
SSL IMAP into the XPI for installation into Thunderbird's certificate
store, but things are definitely improving :-).