Each community member can decide on when and what type of email notifications he/she wants to receive from the community. To manage the email notification, you should click on your profile picture> Account Settings> Emails & Notifications
Here, you would see different frequency options for each type of notification. For example, you can choose to receive immediate notifications if there is a new activity from people i'm following, or Never receive email notification when there is an up-vote and likes on my posts.
Please remember to save the changes at the end.