Ppapa: Created page with "1. Telnet to port 25 on the host: telnet smtp.yourdomain.com 25 You should see something like: Trying X.X.X.X... Connected to smtp.yourdomain.com. Escape character is..."

2013-06-03T04:46:47Z

Created page with "1. Telnet to port 25 on the host: telnet smtp.yourdomain.com 25 You should see something like: Trying X.X.X.X... Connected to smtp.yourdomain.com. Escape character is..."

New page

1. Telnet to port 25 on the host:

telnet smtp.yourdomain.com 25

You should see something like:

Trying X.X.X.X...
Connected to smtp.yourdomain.com.
Escape character is '^]'.
220 smtp.yourdomain.com ESMTP Sendmail 8.14.4/8.14.4; Mon, 16 May 2011 04:34:09 GMT

2. Respond with

HELO somedomain.com

You should see something like:

HELO somedomain.com.com
250 smtp.yourdomain.com Hello somedomain.com [X.X.X.X], pleased to meet you

3. Tell it where the mail is from:

MAIL FROM: me@somedomain.com

You should see something like:

250 2.1.0 me@somedomain.com... Sender ok

4. Tell it who the recipient is:

RCPT TO: somedude@somedomain.com

You should see:

250 2.1.5 somedude@somedomain.com... Recipient ok

5. Compose the email:

DATA
SUBJECT: testing mail
hello. this is a test.
.

You should see:

DATA
354 Enter mail, end with "." on a line by itself
SUBJECT: testing mail
hello. this is a test.
.
250 2.0.0 r534bJIb013152 Message accepted for delivery

Testing SMTP host with telnet - Revision history

Ppapa: Created page with "1. Telnet to port 25 on the host: telnet smtp.yourdomain.com 25 You should see something like: Trying X.X.X.X... Connected to smtp.yourdomain.com. Escape character is..."