At 1PM -0700 on 11/07/13 you (Professa Dementia) wrote:
>
> If you have access to a Unix / Linux system, you can use openssl with
> the s_client command to connect to your mail server, much as you would
> have done with telnet in the old days. openssl shows all of the key
> exchange in detail and should be more than enough for you to be able to
> debug your problem. Compare fingerprints of the keys you have stored
> with those being sent to/from the server.
>
> Example:
>
> openssl s_client -connect mail.mydomain.com:995
For STARTTLS that needs to be
openssl s_client -starttls imap mail.mydomain.com:143
Ben
