The built-in Email Action sends messages as emails. This Action will by default send a styled email with the most important aspects of an alarm, including a hyperlink back to Humio with the result.
Should you want to modify the email, you can do so by checking Use Custom Email Template and filling in the Message Body Template. A small disclaimer is added automatically at the top of each email to clarify that it is sent as a Humio Action.
Custom Email templates are only available for licensed customers.