Using Telnet to send mail



Step by step instructions for sending an smtp email via telnet to the smtp port:

telnet [mail server ip/name] 25

HELO site.company.com

MAIL FROM:<username@krytosvirus.com>

RCPT TO:<customer@company.com> 

DATA 

Subject:Type your subject here 

Now press the Enter key twice. You will not see a response to this

command. The two enter commands are to conform to RFC 822.

Type you message here 

To send the message type a period (.) at the next blank line. You

should see a response like this –    250 OK

You can now close the connection. Type in the following command – 

QUIT 

Using Telnet to check mail


Step by step instructions for checking email via telnet to the pop3 port: 

telnet [mail server ip/name] 110

user [username]

pass [password] 

The following commands may be used as needed:

stat (lists number of messages and total size of all messages)

Sample response: +OK 3 345910

list (this will list all of the messages showing their size)

Sample response:
+OK 3 messages
1 1205
2 305
3 344400

retr [message number]  (outputs content of message to the screen)

Example: RETR 2

top [message number] [number of lines]  (this will display the message header and as many lines after that as you enter in]

Example:  TOP 1 5     would list the headers and first 5 lines.

dele [message number]  (marks message for deletion)

Example: DELE 3

rset (unmarks all messages previously marked for deletion)

quit (deletes marked messages and logs you off the server)

for other commands see:  ftp://ftp.isi.edu/in-notes/rfc1939.txt