Sending post to Google+ group via email

You should be able to reply to the comment right within the email message.

Gmail and Google plus just got a little closer, with the search giant announcing that you can now use Gmail to respond to Google plus notifications.

The changes mean that Google social’s networking site which has already been integrated into search results, will also become an important part of Gmail.

So what will it mean for users? Well they can reply to Google plus notifications instantly from their Gmail inbox without having to click on the Plus icon on the Google bar.

More at the official announcement: http://googleplus-update.blogspot.com/2012/05/now-reply-to-google-plus-comments-from.html

In short: no.

At the moment, you cannot post a message to your circles and to a community (public or private) at the same time. There are some legitimate concerns that if you do so you're exposing the community (or comments from members in the community) to people who are not in the community, and may not even be aware of its existence. While this may be ok for some private communities, it is probably not what most expect, which is a truly private place to talk.

Combining the two is a very tricky thing to navigate when it comes to private communities, and I don't expect them to address this issue further. But if you want to provide your input, and provide specific use cases where you think it makes sense and how you would like the privacy issues handled, make sure you use the Send feedback feature available under the gear icon.