Re: [nznog] Greylisting New Zealand whitelist

Russell Fulton wrote:

But remember that grey listing is merely a stop gap measure as soon as spammers think that greylising is really hurting them they will rework their spam engines to handle retries -- it won't be that difficult, particularly since they don't have to queue whole messages, just a message id and 'sender' and recipient.

I think it's generally accepted that most (all?) anti-spam "solutions" are stop gap in some way, shape or form. -- Nathan Ward