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5. Networking Hacks > 48. Send and Receive Email Without a Mail Client

Send and Receive Email Without a Mail Client

Learn to speak SMTP and POP3.

Contrary to popular belief, you don’t have to go to the trouble of configuring an email client just because you want to check your email or send off a quick email message.

Normally when you use the telnet application, you use a Telnet client to attach to a Telnet server listening on port 23. Once you’re connected, you can log in and do anything on that device as if you were physically there, typing at its keyboard.

The Telnet client has even more powerful capabilities than this. If you specify a port number with the telnet command, you will attach directly to the TCP server listening on that port. If you know which commands that server can respond to, and if the service understands plain text commands, you can talk directly to that server. This essentially means that you no longer require a client application specific to that server.


  

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