do i understand tls_policy_maps right?

[weber]

hello,
when i set in main.cf:


smtp_tls_policy_maps                                    = 
hash:/etc/postfix/tls_policy

and do in


/etc/postfix/tls_policy =

externaldomain.com       encrpyt


will then every mail leaving my server to externaldomain.com forced 
using tls ?


and when i set in the same map


external2.com             verify


every incoming mail is checked if the  cert is signed by the CA , that 
i have stored in the CA_path ?


marko