Using Discourse as a newsletter

The objective is to link users from an external website to Discourse signup form in order to subscribe to a specific group that will be used as a newsletter. However in its current form Discourse signup form requires the users to enter a password and this is not something users will do when signing up for a newsletter.

Is there a way to singup to Discourse with only an email address and no password required by the signup form similar to the invite functionality? Perhaps by adding a route to a given point say discourse.tld/newsletter?

I would like to avoid calling the API from an external website.


I also find this feature very useful.
Only a subset of our userbase will be active in the forum but we still would like to have a feature to send regular newsletters to a larger group of people who want to be updated but would not sign up with a password.