开云体育

From a functional standpoint, I think even a Basic group would suffice. An announce only group with unrestricted membership doesn't seem to need Direct Add or other management features, nor would it be likely to need extra storage.

On the other hand, the three Enterprise-only features Your own domain, Your own logo, and Fully customizable home page might be felt necessary for a public agency to properly identify itself. If they tell people to go to this third party site (Groups.io) to sign up, and the messages will come from there, that could generate confusion or concern by some citizens. Especially if the agency already has a public-facing web presence then having this announcement service integrated with that identity might be imperitive.

If they don't have an established online identity, or they don't mind the "at arms length" appearance of having the announcements delivered by a third party, then keeping the cost low might take priority..

Shal