Choosing Front as the default email client
Go into your Settings and select My preferences.
Scroll down to Default email client.
Click Make default to set Front as your default email client.Step 4
If you're using Windows 7, click Yes in the UAC dialog that appears. If you're using Windows 8 or Windows 10, follow the additional instructions below.
Step 5 (additional steps for Windows 8 & 10)
From the Start menu, choose Settings.
Then choose Default apps from the sidebar, and select Mail.
Choose Front from the dropdown list.