This week our hostmaster will be making some modifications to our central mail system in an effort to improve the efficacy of the anti-spam software. The changes will not involve any downtime, however, you may see a temporary increase in the amount of inbound spam you receive until the new system has had ample time to re-train its spam database.
Instead of using several independent databases we will be moving to a system that uses only one centralized database. This will significantly improve the rate at which spam is detected because the software will have a greater sampling of messages to analyze and be able to use that information to better detect spam.
It could take several days or weeks for the system to re-train appropriately, but we do not anticipate it taking that long for most users. The system will continue to improve at detecting spam once it has additional time to analyze and tag more inbound spam.