In this document, we:
* shall use Telnet to connect to the SMTP server.
* shall give commands to the server, then type our e-mail, and finally tell the
server, 'Okay, the e-mail is done. Send it.
* can then send more mails, or disconnect from the server.
The steps are quite similar to what you do when you send an e-mail from - for instance - Outlook Express.
We are going to use the SMTP server of monitortools.com with the ID 'webmaster'.