Admins can enable the email notification feature on their communities. This way, your community members will receive an email once they have a notification on their community account. Follow the steps below to enable the email notification:
Admin Panel> Portal Settings> Portal Policies> Email (Send Emails)> Save.
To make sure that the emails are not ending up in spam, you need to follow the steps provided here: https://community.tribe.so/question/5d5ba81ecaaacd6bc08270562