Activity Reminder is an extension module and is paid. You can activate this module in your settings as follows: go to the Settings, Extension Modules and Activity Reminder section:
After clicking on this module, a window with a short description will appear:
After clicking the green Manage Module button, another window will appear:
Here we can set the exact time we want Mango to send us reminders each day. The reminder that will arrive in the users email looks like this:
The user will only receive this notification if they fill in the Next Contact Date field when saving the activity.