search for: smtp_tls_

I've googled around and although I get a lot of hits about postfix smarthost authentication with ssl, I can not find out how to actually accomplish the task. I've read through smatterings of postings from Neophasis and the like searching for just the syntax and what file (I assume it's main.cf) I should be using; however, any smtpd_ lines I have tried result in postfix hanging and