I've tried many different configurations,
Driver: smtp
Host: smtp.yandex.com
Port: 465
Encryption: ssl
Driver: smtp
Host: smtp.gmail.com
Port: 465
Encryption: ssl
and I've tried different port and encryption combinations, but everytime, it either gives me an error, or it says it has sent without actually sending. The first I have gotten to work with both telnet and swaks.