Release v0.9.2 (Direct Download Link) is now in place.
The release details (and new documentation) can be found at the head of this thread (quick link) and/or GitHub. There were several bugfixes in this release (nothing major though). The only thing new offered is Microsoft Windows Notifications which generates a popup by your clock in the status bar (for those who wish to use the windows:// url)
For information on how to construct a URL you can find details here.
@douche: I still can't reproduce your issue as all my received emails aren't missing the first letter like your examples. I'll keep poking around; but perhaps just completely erase all traces of your copy of Notify and grab the latest? It may not provide any success; but it's the only advice i can muster up at this time.