I honestly do not know the exact number, but take Skylar's number and add some more to it! I use Gmail for my e mail using, so posts from the same thread (like all of those from this discussion) get grouped into the same e mail notification.
I have to admit that I do not real all of them. After 10 years of moderating, I have gotten reasonably good at knowing which ones might be having a problem that needs addressing and which ones don't. Then there are the threads that I have an interest in and I open those e mails and read them.
So yea, you could say I get a lot of e mails and read a lot of e mails! It is pretty much a habit to check my e mails as often as I can to try and stay on top of things. I also get a lot of help from the moderators.
Another thing that keeps me busy is helping folks log in because of a forgotten username and/or password. Probably get a half dozen to a dozen of those a day!
Not complaining though. It's all part of a day's job on johndee.com!
-John