Test sending email through telnet

This the minimal telnet session to test sending to email server.

$ telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 example.com ESMTP
helo
250 example.com
mail from:me@gmail.com
250 ok
rcpt to:x9tayay@example.com
250 ok
data
354 go ahead
Subject: OTA

ota ajaj.
.
250 ok 1326364891 qp 1790
quit
221 example.com

The mail server in this case running qmail. If the email is bounced, the returned email may end up in your spam folder as the sender domain does not match, we send this from localhost instead of from gmail.com.