I am having this same problem, it certainly has nothing to do with the entry under the admin user’s Option->General as the other post and this post suggest. The from for mine says apache@<myrealdomain.com>
with my actual domain there. I had a user complain about this today and I would rather change it to a no-reply@ or an actual email address. I have 1.5, I didn’t upgrade, brand new install.
