Milter-greylist

> > 4) SPF, AUTH and STARTTLS integration in ACL
> > Example will tell more than a login explanation
> > racl whitelist spf
> 
> I'm not sure if this has already been dealt with, but the mechanisms
> in 3.0 for dealing with mail farms by whitelisting them, be it based
> on IP or SPF, seems a misfeature to me.

Sorry, I should have been making this point only with respect to SPF,
so forget about the conf file syntax stuff I mentioned.

I forgot about this obviously correct observation in the README:

  Another workaround is simply to whitelist the netblocks allocated to
  mail farms. As any machine in theses IP address ranges are real SMTP
  servers that will always resend their messages, there is no point in
  greylisting them.

Anyway, I still think SPF needs to be used to define an equivalence class.

Cheers,

	- Joel