Mail won't send, "Language string failed to load: tls"
I've recently set up a Vanilla forum (latest stable version running on Apache 2.4/PHP 5.6/MariaDB 5.5/FreeBSD 10.1) and it's not sending mail (using OpenMailBox using TLS. When I use the "Getting Started" page in the dashboard to send a message to myself, for example, I get "Language string failed to load: tls." If I use SSL, I get "SMTP Error: Could not connect to SMTP host." My mail provider does NOT do unsecured SMTP. I can verify that I can reach the SMTP server with telnet.