Send email using a telnet client!

February 20, 2008 – 1:45 pm

This is definitely one for the geeks!

You do/type this Server responds with
telnet ipaddress 25 220 (then identifies itself -

possibly with several lines of 220 + text)

HELO 250 (followed by human readable message)
MAIL FROM:you@hostname.com 250 is syntactically correct (or similar)
RCPT TO:them@someplace_else.com 250

is syntactically correct

DATA Tells you to send data then CRLF period CRLF at end
Type your message then CRLF period CRLF

(I.E., type a period on a line by itself then hit ENTER)

250 (usually with a message stating the mail was queued
QUIT Signoff message

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