In migrating an organisation from Yahoo Groups to a Google+ Community, we're finding that one of the features that users miss the most is the ability to start a new thread from an email sent to a group address. Is there a way to do this in Google+ Communities that we've not discovered yet?
Create a post in a Google+ Community direct from Gmail
emailgoogle-plusgoogle-plus-communities
Best Answer
In short, yes you can; I recently followed a group on Google+, and every day after I was getting an email or two, from a group member, who was simply sharing something socially as they went about their day.
Suffice it to say, that I know have group messages turned off. You can read more about it, get details of how to do it here:
https://groups.google.com/forum/#!topic/umichcollab/4dCDeJrl2xA
and here:
https://sites.google.com/a/umich.edu/going-google/tech-updates/emailgoogleconnections