Good. The options provided by Thunderbird are: None, STARTTLS and SSL/TLS. So I will select the last one.

Will I have to modify anything on the Dovecot side?

So far, my only modification to the file 10-mail.conf has been this:

mail_location = maildir:~/Mail

Raymond

Am 10.11.20 um 06:42 schrieb Raymond Herrera:

I am preparing a new server, with Dovecot 2.2.36 and would like to know the currently recommended protocols. Should I stick to what I have? I would prefer to start with the easiest configuration possible, which I will revise later.

This is the command that I have been using to verify the server's functionality:

RFC 8314 suggest to prefer implicit TLS over STARTTLS
https://tools.ietf.org/html/rfc8314#section-3

modern clients work mostly fine with that recommendation, too.

Andreas