Are you using AT&T? If so, the back log of e-mail notifications that went out after they changed over to the new server caused AT&T to think INGO was spamming. AT&T has "blacklisted" INGO. AT&T has been contacted by INGO, and a request has been made to remove INGO from that "blacklist".
Even though I was told by AT&T it would take "only" 24 hours after the request it is obvious that is NOT the case. Kind of sucks having to search all the threads looking to see if someone has replied.
BTW, I am NOT a member of INGO's staff, just did some checking myself.
I have my own domain hosted through HostRocket. Today I got a TON of email notifications....the first ones ever. So this is a good sign something was fixed!