[ARC5] Mail List "Spam" Filter- Need Guidance.

[J. Forster]

It's unclear how any particular filter works, and there are several layers:

QTH and Yahoo are the first layer.
Your own email server is another.

This is by no means definitive but a message will likely get trapped if:

The sender's name, etc., contains no vowels.
If the send time is way off (hours).
If it contains a blacklisted URL.
If there is a lot of punctuation in the Subject line.
If the message comes from a not-trusted relay.

Note that QRZ often gets blacklisted because SpamCop reports all URLs in a
spam message, even those admin email addresses listeed in messages.

-John

===============


> Can someone point me to a document that outlines
> how these blasted mail-list "spam" filters work?
> Several times I've had posts blocked and, since I never
> get a "blocked because" message, I can't tell what innocent
> word or phrase set the darned thing off.  I once wasted hours
> trying to re-write something before discovering the problem.
> I know we need a spam filter, and replying to spam
> gets you more spam.  But I need some clues at least, please.
> Isn't there a "safe senders' list option??
>
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