On 27.07.17 15:56, Paul Covello wrote:
I have an OpenBSD 6.1 box set up with OpenSMTPD and Dovecot on Vultr (a VPS provider). This machine is intended for use as my primary mail server. I have a Let’s Encrypt certificate installed and declared in the smtpd.conf file like so: I can send and receive mail ok using Apple Mail on my mac. Thunderbird is another story… I am warned when I set up the account that SMTP is NOT encrypted. This has driven me batty all week. My Google-Foo fails me and reading through my Dovecot book and smtpd man pages have not enlightened me as to why this is not using TLS. When I telnet to the machine on port 587 and issue the EHLO command, STARTTLS does appear in the response. Also, OpenSMTPD shows when I type the help command. issuing a Mail command comes back with the response that STARTTLS must be done first. Can someone clue me in on what I might be missing?
in thunderbird set Connection security to STARTTLS
Thanks in advance for your help! — Paul.