[B<-pause>]
[B<-showcerts>]
[B<-debug>]
+[B<-msg>]
[B<-nbio_test>]
[B<-state>]
[B<-nbio>]
[B<-no_tls1>]
[B<-bugs>]
[B<-cipher cipherlist>]
+[B<-starttls protocol>]
[B<-engine id>]
[B<-rand file(s)>]
print extensive debugging information including a hex dump of all traffic.
+=item B<-msg>
+
+show all protocol messages with hex dump.
+
=item B<-nbio_test>
tests non-blocking I/O
=item B<-quiet>
-inhibit printing of session and certificate information. This implicitely
+inhibit printing of session and certificate information. This implicitly
turns on B<-ign_eof> as well.
=item B<-ssl2>, B<-ssl3>, B<-tls1>, B<-no_ssl2>, B<-no_ssl3>, B<-no_tls1>
supported cipher in the list sent by the client. See the B<ciphers>
command for more information.
+=item B<-starttls protocol>
+
+send the protocol-specific message(s) to switch to TLS for communication.
+B<protocol> is a keyword for the intended protocol. Currently, the only
+supported keyword is "smtp".
+
=item B<-engine id>
specifying an engine (by it's unique B<id> string) will cause B<s_client>
If a connection is established with an SSL server then any data received
from the server is displayed and any key presses will be sent to the
server. When used interactively (which means neither B<-quiet> nor B<-ign_eof>
-have been given), the session will be renegociated if the line begins with an
+have been given), the session will be renegotiated if the line begins with an
B<R>, and if the line begins with a B<Q> or if end of file is reached, the
connection will be closed down.