On Sat, 24 Sep 2011 03:04:39 -0500 David Bennett wrote: > I read an interesting excerpt on the Zimbra site about commercial > whitelists. > > > http://wiki.zimbra.com/wiki/Improving_Anti-spam_system#Externally-Maintained_Whitelists > > It occurred to me that a sender that is paying their way into my inbox > is almost certainly sending me junk mail. A little research in my > inbox and it turns out to be right on the money. All stuff that I > didn't want. > > It seems so obvious, if they try to buy their way into my inbox they > probably belong in my spam folder.
The point of these lists is that companies should suffer financially and/or get kicked off the lists if they abuse them. It's not obvious that they should be treated as spam indicators. It depends on how well they are run and whether you have a lot legitimate opt-in marketing mail. > I took the reduced negative scores recommended by Zimbra, inverted the > values and stored these in my local.cf. That means you're penalising the better ones more than the worse ones. > score RCVD_IN_DNSWL_LOW 0 0.1 0 0.1 > score RCVD_IN_DNSWL_MED 0 0.4 0 0.4 > score RCVD_IN_DNSWL_HI 0 0.8 0 0.8 DNSWL is a genuine reputation-based list - it doesn't deserve positive scores.
