On 02/Dec/11 12:35, Tony Finch wrote:
John Levine <johnl(_at_)taugh(_dot_)com> wrote:
This isn't really relevant to the topic under discussion, which is really
that the "legitimate" mail sent around on corporate mail systems is
hardly any better than the spam.
I call it "intraspam". Very hard to deal with.
Harder than interspam? Paul's "Great Cascade" case, as well as
http://www.ucs.cam.ac.uk/isss/rules/other/bulkemail/internal.html
seem to be issues about proper use of (proper) mailing lists.
IMHO, the effectiveness of ordinary spam filtering is a sort of
illusion brought about by big numbers law. For example, some claim
that it is highly effective to reject based on geoip lookups...