SMTP mp4 sending records by mail

Hello,
I have a question about sending recording file by mail.
My camera takes a record where someody is in front of the camera and we are not supposed to be…
The file is recorded, but I don’t know how to specify mp4 on the parameter of the automation:

- service: notify.email
            data:
              title: "Home assistant ALERT"
              message: "Presence indesiree a la porte d'entree principale !!!!!!"
              data:
                images:
                  - '/config/www/cameras/entree/record.mp4'

images is not good… what can I write ?

Best regards

Thierry

Found a solution ?