Test the SMTP Service

To test the SMTP service, follow these steps:
1. Type Telnet at a command prompt (Terminal) , and then press ENTER.
2. At the telnet prompt, type set LocalEcho, press ENTER, and then type open 25, and then press ENTER.
3. Type helo me, and then press ENTER.
The output resembles the following:
250 OK
4. Type mail from:email@domain.com, and then press ENTER.
The output resembles the following:
250 OK – mail from
5. Type rcpt to:youremail@yourdomain.com, and then press ENTER.
The output resembles the following:
250 OK – Recipient
6. Type Data, and then press ENTER.
The output resembles the following:
354 Send data. End with CRLF.CRLF
7. Type Subject:This is a test, and then press ENTER two times.
8. Type Testing, and then press ENTER.
9. Press ENTER, type a period (.), and then press ENTER.
The output resembles the following:
250 OK
10. Type quit, and then press ENTER.
The output resembles the following:
221 Closing Port / Mail queued for delivery

One Reply to “Test the SMTP Service”

  1. Thanks – good quick guide. Just copied it to my evernote. I was surprised to find such info on this site :D. I was looking for SMTP tips and probably will spend some time reading more about different aspects and shades of life!
    Best wishes!

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