It would be really cool if admin’s or moderators could maintain a list of curated topics that get included in the digest emails. This would allow them to be used as a newsletter style publication.
We may need to also consider a setting limits for the number of curated topics included in that section of the email template.
The digest/summary function is pretty different under the hood from a newsletter, though. It’s not sent to everyone at a specific time – it’s individually created and sent to each user, based on the interval set in their preferences, and only if they don’t visit the forum in that time.
I’d imagine you’d want a curated newsletter to go out to everybody, with the same content, at the same time – not in a week or a month or whatever the user has selected (or not be sent at all, if the user visits the site frequently.)
A couple of options you could look at, if you haven’t already:
I might look into listmonk.app we can’t use mailchimp at work because of privacy concerns as we work in a regulated industry, also I’m not sure it GDRP compliant either.
Another self-hosted open source solution is https://sendportal.io/. There’s an indication here that features include GDPR compliance, but I haven’t dug for details.