What do the Zero Hour related spam classifications mean?
This applies to F-Secure Internet Gatekeeper 6.60 and newer with the F-Secure Spam Control module. When viewing the full message headers, there will be one line starting with X-Spam-Status. This line may contain names of multiple different tests the message has been subjected to. Some of the tests are related to the heuristic spam scanning, while the Zero Hour spam classifications are the following: • clConfirmed: The e-mail is confirmed spam message. • clBulk: The e-mail is likely a bulk mail, for example a newsletter type of posting. • clSuspected: The e-mail has been sent to slightly larger than average distribution, or an unidentified spam message sent during the first few seconds of a massive spam outbreak. • clUnknown: The e-mail does not have any spam-like characteristics. • clNone: The e-mail is certainly not a spam, comes from a trusted source.
