On Sat, 25 Jul 2009 18:07:12 -0400
"Michael W. Cocke" <cocke.mich...@gmail.com> wrote:

> 
> There doesn't seem to be a web interface to subscribe/unscribe from
> this list.  The email address
> "users-unsubscr...@spamassassin.apache.org"  complains that my IP
> address is dynamic (which is why I use dyndns.org, thank you very
> much.)  

Presumably it's complaining that you are sending "direct to mx" from a
dynamic IP address. If you run a mail server on an dynamic address, you
should send your outgoing mail through a smarthost.

> And on that subject, am I the only person who thinks that
> blocking by IP address block is inefficient, brute force, and prone
> to both false positives

It's extremely efficient, blocklists catch most spam, many spamassassin
installations would be overwhelmed if they had to deal with it all.

It's arguable that there's no such thing as a false positive in this
area anymore, because the consensus against receiving mail from dynamic
addresses is now so strong that it's in the senders own interest that
they be forced to fix their problem. 

> and false negatives?

That's why we have Spamassassin.

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