I frequently share photos from Instant Upload with my Family circle (which has 7 people in it).  Every time I do this, I make sure that Also send email to Family is unchecked.  However, every time, I hear back from a few people that they got an email notifying them about my post.  I checked my wife's account, and in addition to the email she received, she has a notification that I shared my post directly with her.Why is this?  I don't want to spam my whole family every time I post.  Is this a known issue, and is there any way that I can work around it?I have submitted feedback to Google regarding this and have received no response.
Why does Google Plus email my whole family when I share a post?
google;google plus
Sounds like your family will need to edit their email notifications settings. This can be done by going to:Google+ Settings (Gear)  Edit your Receive Notifications optionsEach person will have to do this though, since the notifications are controlled on their side. This will allow them to continue to receive notifications in the top right (red square) but not in their inbox.