sorry for the late reply. I was on vacation. Unfortunately, I returned and could not find the managed switch anymore. Someone must've taken it. So I won't be able to post a .pcap file, since I cannot remote capture.
However, it seems I managed to get rid of the "unknown protocol" error. I was using the read function of my colleague and it was only copying bytes until it reaches a newline character, so when I call the TLS function (see the code my 1st post), the receive buffer had already some bytes left over from previous replies. So, as mentioned earlier, I do not get the "unknown protocol" error anymore, however, ssl_connect still fails but this time it does not print out any error, it simply prints out the following: ///////////////creating TLS Session///////////////////// SSL_connect failed I'm trying to connect to smtp.gmail.com:587 Any help will be appreciated. -- View this message in context: http://openssl.6102.n7.nabble.com/SSMTP-Client-SSL-routines-SSL23-GET-SERVER-HELLO-tp48871p49060.html Sent from the OpenSSL - User mailing list archive at Nabble.com. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org