Apologies for going offtopic, but FYI, SpamAsssassin is marking your registration emails and alerts as spam.
Here's the important positive scores:
1.775 URIBL_BLACK Contains an URL listed in the URIBL blacklist
1.105 MIME_HTML_ONLY Message only has text/html MIME parts
0.635 HTML_MIME_NO_HTML_TAG HTML-only message, but there is no HTML tag
P.S. I'm a developer at Uptime Robot and Everyone Panic is a very handy integration, great job.