Sending Emails From Modern Event Calendar
Modern event calendar is designed in a way that you can send emails from its panel. For instance, the default feature has an auto-confirmation and auto-verification email options. These emails are sent once a booking in done on your website.
There might be two reasons behind it, if you are unable to try sending emails from Modern Event Calendar .
Note: you might need a third party plugin for extensive emailing option on your WordPress website
Here we can see a conversation from the Modern Event Calendar’s support desk explaining how to enable to disable this feature.