Hello James,
I'm fairly confident that the bug you're seeing in 9014 is due to malformed headers and was fixed in 9028. 9028 did have a small clam related issue that we fixed in 9032, so if you wanted to try out an upgrade I'd aim for 9032.
Best regards,
Jorel Haggard
System/Network Administrator
SmarterTools Inc.
www.smartertools.com