email

contained the library and source code file .

To send e-mail you must not have activation the FireWall and you must do
the necessary changes in your accounts.

I used gmail.com and yahoo.gr . Here is the helpful links for this
1 for yahoo :
https://gr.help.yahoo.com/kb/yahoo-account/%CE%B4%CE%B7%CE%BC%CE%B9%CE%BF%CF%85%CF%81%CE%B3%CE%AE%CF%83%CE%B5%CF%84%CE%B5-%CE%AD%CE%BD%CE%B1%CE%BD-%CE%BC%CE%BF%CE%BD%CE%B1%CE%B4%CE%B9%CE%BA%CF%8C-%CE%BA%CF%89%CE%B4%CE%B9%CE%BA%CF%8C-%CF%80%CF%81%CF%8C%CF%83%CE%B2%CE%B1%CF%83%CE%B7%CF%82-sln15241.html

2 for gmail https://www.google.com/settings/security/lesssecureapps\