Teamup does not have built-in email functionality. However, using integrations you can set up a workflow to automatically send an email after a new event is created in Teamup.
Here are some quick tips for setting up this type of workflow:
You can use Zapier integrations with Teamup Calendar. Make.com also works well.
Zapier has a built-in email sender you can use for this workflow. See here for how Teamup Calendar and Email by Zapier can work together.
To set up this workflow, you'll need to obtain a Teamup API key. Request one here.
The workflow trigger should be a new event is added in Teamup. The action is sending an email.
You will need a required event field in your Teamup Calendar to hold the recipient's email address. You can use a custom event field or repurpose a built-in event field.