Filtering spam from e-mail at the network gateway has several advantages. First, servers do not get clogged up with spam messages, and PC users don't have to worry about updating their scanning software, nor training it to recognize spam. Gateway spam filtering makes administration easier because managing the configuration is done in one place.

Intoto has integrated advanced spam filtering technology and spam signature update service that provide among the highest effectiveness available as measured maximum spam blocking with minimum false positives. For mid-range to high-end gateway platforms, the spam is filtered inline in the box. For low-end boxes, the mail stream is partially redirected to a hosted filtering service that adds minimum latency, but maximum protection.