> I'm working on integrating spamassassin into our own spam filtering
> mechanism. Currently, with a score of 5 or greater we modify the
> subject line to indicate the spammishness of the message... with a
> score of 10 or greater we delete the email automatically and do not
> deliver it to the user because my experience has been that a score of
> 10+ is undoubtably spam. We use network, local and bayesian tests.

Is this just for a few users on a "personal" server, or site-wide at an ISP?
It's generally agreed that deleting mail automatically on a site-wide basis
is a Bad Idea, no matter how spammy it looks.

> One of the concepts that i'm working on is a simple user preference.
> I'll explain it briefly and would REALLY like your input on the concept
> and any unexpected results i might encounter :)

[snip]

> So my initial reaction to this solution is to allow per-user content
> filtering by doubling the points for each test. In the grandmother
> example, i have a list of about 20 tests, and i'm doubling the points
> earned for each of those tests so that any porn will be tagged/flagged
> as spam, but all other kinds of email will be filtered using the
> default rules.
>
> For me, i double the points for all mortgage & loan related tests, but
> set all porn tests to 0 so i get all the porn emails i want but dont
> get any mortgage related email and all the non-porn UBE tests get run
> against porn emails, so any porn that is legitimate will get through
> and any porn that is ube will get tagged as such.

It may just be easier to add per-user whitelist items that whitelist mail
from known addresses, and blacklist everything else.

Per-user configs, both flat files and SQL-based, can set scores for tests. I
imagine that you could write a module to WebUserPrefs that would set scores
a lot higher for certain sets of rules, which would allow your end users to
check a box for certain types of mail they want scored higher.

> Is there anything fundamentally flawed with my idea? Would this really
> mess up the filtering mechanism?

As long as you make it opt-in and configurable on a per-user basis, it's a
reasonable idea. I guess there's people who want to enlarge their
mortgage...

Mike Jackson
Technical Manager, efn.org
www.efn.org




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