I feel I must disagree with you..
My mail server works perfectly except when WordPress supposedly "sends" me an email. It apparently never sends an email -- except once when Mark said he "made a change in my blog" then once and only once -- then back to the same problem.
Yes, I have all comments sitting on the blog but frankly it is a pain not to have the facility of email I started out with.
I will create a new blog to see if it will work there.. and I will let you know the results.