I've followed godaddy's instructions for applying the godaddy cert to courier-imap here are their instructions: http://help.godaddy.com/article/5662 I also tried TLS_TRUSTCERTS=/etc/ssl/private/gdca.txt as I have found instructions that state that. I'm not sure what's wrong but I can't connect to port 993 since I moved from self-signed to CA signed. Did I miss any other settings in imapd-ssl config?