We’ve been looking to outsource our spam filtering (ala Postini, Messagelabs) but so far all the outsourced providers are too expensive. The sweet spot seems to be with about 5,000 clients, and we only have 10. So, paying $1,000/mo just doesn’t cut it.
Yes, I know that we could use any number of Domino products (e.g., SpamJam), general purpose commercial spam filters (TrendMicro) or OSS (SpamAssassin). However, what I am specificially looking at is outsourced spam filtering for SMB and SOHO sites.
All the best,
Jack