An IC engine would run just fine for quite a long while with no air or oil filters. The filters are there to prolong its lifespan, but are not strictly necessary for basic operation.
How long would your email be usable if you turned off your spam filters?
Engine aire filters are also preventing the INGRESS of foreign contaminants. Most spam filters are much closer to the receiver than the sender. So the spam email volume still moves through many servers, routers and networks before it is finally filtered out and stopped.
How long would your email be usable if you turned off your spam filters?
Engine aire filters are also preventing the INGRESS of foreign contaminants. Most spam filters are much closer to the receiver than the sender. So the spam email volume still moves through many servers, routers and networks before it is finally filtered out and stopped.
I don't think your analogy holds up at all.