On Jan 4, 2008 2:10 PM, Luke -Jr <luke@dashjr.org> wrote:

> you could just telnet to your POP3 and SMTP servers; that would be
> using the telnet e-mail client

I don't believe either POP3 or SMTP support the Telnet protocol.
So using a Telnet client *might* work, but that is a coincidence from the
simplicity of the protocols involved.

Any protocol that uses TCP and human-readable text "supports" the telnet client . That's the way most of the Internet got designed. When you're testing a server, you telnet to it and converse via the protocol you're trying to implement. Once you get the server running, you can implement a client that talks to it.