[IMail Forum] Declude

[Ken Imail]

I understand somewhat what Declude is, but there doesn’t seem to be much detail on it on the website. I’m confused why this is so much better than the IMail filters, AND it seems that $295/$495 is a bit out of line for a spam filter.  Could someone enlighten me here about why this is THE answer, and why it is worth what they are charging. Does the cost include updates for a year ?  How are update performed, etc.   thanks