Is your feature request related to a problem? Please describe.

As a Mail user, I want to be able to recognize generated content.

Describe the solution you'd like

Suggested replies must have

1. A hint for the user underneath buttons
2. A hint in the generated content/email

Additionally, it should have

1. A tag/header on the sent email. This header needs research. Is there a standard yet? It will signal to the recipient that they are receiving (partly) generated content

Describe alternatives you've considered

N/a

Additional context

No response