There needs to be a block created that allows for custom email notifications.
I am using this for Project Management and I need Airtable to send a list of items that are assigned to collaborators on a daily or weekly basis. Anyone who is assigned a task will get daily or weekly emails with a list of the titles of each task.
There are a ton of similar requests for this already. Maybe making it a block would bump people up to the paid plan as this is a very sought after feature that would allow you to compete with a project management tool such as Basecamp.