So we have pre-existing groups and users but I have been asked that all posts in chatter be emailed to all the group members right away and not just in the daily digest.  I've changed the setting in the groups from daily digest to email all posts but for some of these preexisting groups it still saves it for the daily digest.

Is their away to set all groups and users to these settings?

Thanks for your help. 

- Eric Gins