[Rack] Spam controls for noisebridge mail

[Ben Kochie]

Hey, I was thinking about improving the automatic spam controls on the 
noisebridge list mailserver.

We get a lot of random junk thrown at us, and I'd like to reduce the crap 
that ends up in our list moderation queues.

One solution I've been thinking about is adding milter[0] filtering.

Specifically, milter-greylist[1] and/or spamass-milter[2].

I'm also thinking about adding DKIM[3] signing to outbound mails from the 
noisebridge.net domain.

Coments? Ideas?

[0]: http://www.postfix.org/MILTER_README.html
[1]: http://hcpnet.free.fr/milter-greylist/
[2]: http://savannah.nongnu.org/projects/spamass-milt/
[3]: http://en.wikipedia.org/wiki/DomainKeys_Identified_Mail

-ben