I'm in the middle of a D6->D7 upgrade for a school site and desperate to find a reliable way of emailing new content to site users. I'd like to send either immediate notifications or daily digests of all new content posted to the site. The choices need to be really easy for the user... get all news immediately or get a digest. Each parent should get node type School News, but should only get node type Group News for their specific class based on the groups they belong to. Newsletter doesn't seem to respect OG boundaries. My test accounts are getting all class news whether they belong to the group or not. Has anyone tried/had success with this use case scenario?

Thanks for your input.