I’m trying to use telnet to send a message through a mail server. When I get to the DATA section and finished typing my message, I am suppose to end with (CRLF).(CRLF). Everything should work at that point, but I keep getting 500 Unknown command as a response. Do I need to do anything else? Here is a line by line of my input.
TELNET
SET LOCALECHO
SET LOGFILE C:\MYLOGFILE.TXT
OPEN MAIL.THEIRDOMAIN.COM 25
EHLO MYDOMAIN.COM
MAIL FROM: ME@MYDOMAIN.COM
RCPT TO: THEM@THEIRDOMAIN.COM
DATA
Subject: test email
This is a test email
.
500 Unknown Error
