The notification of updated entries should now be fixed. Unfortunately I forgot that when the box was setup it had only one IP address, and now it has two, which means that the second one needed to be added as an allowed e-mail sender (particularly since DD moved to the new address).
So hopefully that is working properly now. Let me know if you think otherwise!
Also, the HITS system had to be reverted now that DD is on a proper IP address of its own, which is also fixed, although the lookup script had a bit of a problem and so a LOT of hits were still showing as Pending Lookup. That's being addressed while I write this entry and should be resolved fairly shortly.
To answer Labyrinths question about showing whether you've got new DD mail when you login to your diary, I shall look at putting that in shortly for you.
Steve