First off – this is awesome! I’ve been wishing for something like this since we rolled out View!
One very minor issue that I ran into is that the HELO sent to the smtp server is not fully-qualified, e.g. HELO hostname instead of HELO hostname.company.com This causes a problem with some paranoid smtp servers that only accept HELO with a FQDN.
As others have said, it would be really nice to have this run as a service. Another total wishlist item for me would be if this could send snmp traps either in addition to or instead of e-mail.