The type header is dynamic and will appear as:

X-Spamphibian-Rule-Type: type

where type is the variable part and will be set to spam, phish, virus or DNSBL. Knowing the type of the rule that matched the message gives the user greater control over how to route messages tagged by Spamphibian Gateway. For example, one might want to automatically route all virus and phish messages to the trash, while routing spam and DNSBL messages to a quarantine folder.