How I got my StartSSL certificates to work with Thunderbird

Short version

(During a brief period where I used StartSSL for my SSL certs…)

Had a problem with my mail server.  Thunderbird was not accepting the Class 1 cert I got from StartCom.  To fix it, I added lines to /etc/dovecot.conf and /etc/postfix/  Assume the intermediate CA cert is named ““.

For dovecot, in /etc/dovecot.conf:

ssl_ca_file = /path/to/certs/

For postfix, in /etc/postfix/

smtpd_tls_CAfile = /path/to/certs/

Then I restarted both services.

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