Test your SMTP server using Windows Telnet Feature

Test-your-SMTP-server-using-Windows-Telnet-Feature

If you want to test your SMTP server is working correctly, you can use the telnet feature within Windows. The following guide will walk you through the steps to carry this out.

Telnet to test your SMTP server

Just open up an elevated command prompt then enter these commands in turn:

telnet yourmaildomainname 25
Telnet to test your SMTP server

This should then connect to your domain and you will see a message like this:

Then run this command:

helo techygeekshome.info

This should then give you a 250 response:

telnet to mail server

Then run this command for your sender address:

mail from: [email protected]

This should give you a 250 OK response:

send telnet email from

Then run this command for the recipiant of the email:

rcpt to: [email protected]

Then type data and hit the Enter key. If this has worked, you should get a response with a 250 2.6.0 in there and an email address.

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About A.J. Armstrong

Founder of TechyGeeksHome and Head Editor for over eight years! IT expert in multiple areas for over 20 years. Sharing experience and knowledge whenever possible! Making IT Happen.

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