No emails are being sent through Groupsite!!!!!!

NONE of my Groupsire emails seem to be getting sent out.  Anybody else having the same problem?

I posted yesterday to a topic concerning the fact that many groupsites seem to be having a problem that no recent activity emails have been sent out for several weeks now.  I have not received any myself. 

This got me thinking that I have not seen any emails from my groupsite period recently.  I have double-checked my email boxes and have discovered that I also have not received any of the email blasts that I sent (site indicates they were successfully sent) or any discussion topics I am subscribed to. 

I also created a new discussion for a subgroup yesterday and marked for all subgroup members to be emailed immediately to notify them of the discussion and I did not get that email at all either. 

My members not getting any emails through Groupsites has drastically slowed down the activity of the site.  My association recently paid to upgrade and I am concerned we are not getting our money's worth.  The email communication is a huge component to the value of the site.  Please help.