Configuring the 'Mailto" command in Windows 10

Microsoft sets the Microsoft Mail application as the default email client in Windows 10. This means that when you select an email link, the Microsoft Mail application opens by default. However, you can change this behavior by configuring either system-wide or protocol-based email settings in Windows 10. To do so, follow the directions below.

Setting the "Mailto" Protocol System-Wide

  • To set your preferred email client as the system-wide default, go to |Settings|Apps|Default Apps| in Windows 10. In the right pane, under the Email section, select the email application you want to use as the default.
System-Wide Default Email Client Settings

Setting the "Mailto" Protocol

  1. You can also configure a specific application for the |MAILTO| protocol independently of your system-wide default email application. To do this, go to |Settings|Apps|Default Apps|, scroll down, and select "Choose default apps by protocol".
Protocol-Based Email Client Configuration
  1. Scroll down and locate the |MAILTO| protocol, then select the application you want to use. To verify the configuration, open OA Mobile and select an email link. If configured correctly, the email link will open using the application assigned to the |MAILTO| protocol.
MAILTO Protocol Configuration
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