Memo for testing ssl/startls connection:
StarTLS:
[leo@thinkleo2 ~]$ openssl s_client -connect mail.wide-net.org:25 -starttls smtp
CONNECTED(00000003)[...]
Verify return code: 0 (ok)
---
220 srv01.mil1.wide-net.org ESMTP - Life is short talk fast!
SSL:
[leo@thinkleo2 ~]$ openssl s_client -connect mail.wide-net.org:465
CONNECTED(00000003)
[...]
Verify return code: 0 (ok)
---
220 srv01.mil1.wide-net.org ESMTP - Life is short talk fast!