I thought I would share what I learned, what I know and how it was eventually fixed.
The problem: Not receiving email notification when a comment was left on my blog.
With no prior issues, I was totally flabbergasted when all of the sudden I wasn't receiving notifications. What I eventually discovered was the notifications were going straight to the trash in my gmail account. What threw me off was the fact that I would receive other notifications from my gmail account for Pinterest and Etsy. Naturally I assumed it had to be a blogger/google issue. After contacting Blogger and Google, I waited and basically got nothing from either place. Crickets!
I continued to search, look, read and pull my hair out for several days. This is what I eventually learned:
You should go check your gmail account every once in a while. Make sure your settings haven't changed on their own! My primary account was all I used. I didn't feel there was a need to gmail check!
If you are unsure what to do, this is what I did:
Go to your gmail account, click on the gear, scroll down to settings.
Settings will get you to this screen. From here I clicked on the 'Forwarding and POP/IMAP' tab. (my eyes glaze over at this point!)
Forwarding: Forward a copy of incoming mail to 'my primary account' and mark gmail's copy as read.
POP Download: #2 When messages are accessed with POP mark gmail's copy as read.
I didn't touch any other areas, and for the record, after setting up this gmail account I have never changed any settings at all. Nothing. I don't know why all of the sudden things went south, but they did.
It still isn't an ideal solution. I will have to go in my gmail inbox and delete messages often. Plus delete the trash. But at least I'm getting notice that I received a comment! Whew!! I'll take that!
I don't know if it made a difference or not, but I did disconnect from Google+ as well. I don't think that was a big deal and frankly, I don't even know what it's all about!
Thanks your for your patience! If anyone is having issues like what I had, hopefully this will solve your problem! Sometimes you plain and simple do not know where to start!