ZoneAlarm reports the above "False Positive" when scanning the MarieSuite Anti-Spam (for The Bat! E-Mail client) product. I have reported the matter to MarieSuite and they have confirmed it as a False Positive, and instructed F-Secure and Kaspersey to fix the defect. They have no contact with ZoneLabs so I have reported it to them (they have not got back to me yet).
The URL below shows F-Secure and Kaspersey also reporting the False Positive. F-Secure have replied to MarieSuite to confirm they will update their database.