This tool will check what ports your computer can connect to on our service.
Please wait - we are just checking your browser for compatibility...
Microsoft Windows - If you are using Microsoft Windows we also have a Windows program that will test all the ports without using your browser.
Next Step - Use our authentication tool to test your SMTP username and password. Authentication Tool
No open ports detected - we could not detect any open ports to our service using your browser, we recommend that you try using one of the ports listed below as 'Blocked by browser'.
Error - Your browser is not currently supported by our port check tool - please contact us for assistance.
|Open||The port is open and you should be able to use this in your email program.|
|Blocked||The port is blocked by your computer, network or ISP firewall.|
|Blocked browser||The port is blocked by your browser for security - you may still be able to use it.|
Please login to the control panel and raise a support ticket for assistance.