add some code in test directory, include pop3 usage and hash usage
tree55527a0b3261b63e09862435ff9f7b28174f7aaf
-rw-r--r-- 395 TODO
drwxr-xr-x - example
-rw-r--r-- 10364 smtpser.py
-rw-r--r-- 1957 smtpssl.py
drwxr-xr-x - test
-rwxr-xr-x 6861 xmailer.py