Required fields for new user role in MEC plugin
Required fields for new user role in MEC plugin can be adjusted in the general part of the WordPress setting. Also, MEC default setting doesn’t allow you to change the name and email of new users. This is part of data integration with WordPress settings.
Here we can see a conversation from the Modern Event Calendar’s support desk which is about New User Role & Required Fields
Note: If you want to learn about email customization in MEC read this documentation about