I have a lot of Saved Search emails and workflow emails that should be sent to me, but for some reason they all stopped recently. Any suggestions on how I can find out why they stopped?

I would start at Setup > Company > sent email list. Are they there?

I would look at the setup email prefs and see if the domain has been deleted.

I found it...they all started to go to Junk email all the sudden. Never did that before this week. How annoying.