Tony Finch wrote: > This seems to be more effective than you might expect, even without
> any kind of fuzzy-matching in the checksum.
Sounds reasonable at least for the anti-virus scan, I'm not sure whether
I'd like that for SpamAssassin though, as headers are important there.
And these mailcounting systems like DCC would not work with it of course.
For anti-virus, I'd sure give it a try, if someone can't resist to
implement it. :o)