How can I open port 587 on a windows VPS running Plesk?

This article applies to 123-reg Windows VPS hosting

This article will explain how you can open port 587 on your Windows VPS.


Login to the admin home panel.


Click the Tools & Settings link in the left hand menu.


Click the Mail Server Settings link.


Tick the Switch on message submission option on the Server-wide mail settings page.

This will then activate port 587 on your VPS.