On 9/14/06, Darrin Chandler wrote: > > On Thu, Sep 14, 2006 at 09:24:20PM -0700, George Toft wrote: > > I find that very few domains use SPF records. Neat idea, but 99% of the > > domains have not set them up and most mail servers don't care. > > I've been using greylisting for a good while now and it works well > except for one thing: large email services (Yahoo!, Hotmail, Gmail) use > a large number of outgoing mail servers. 10 get whitelisted fine and > then somebody is waiting on an email and it's one of the odd ones from > gmail stuck in the greylist. gmail does spf, and so do most of the > others. Whitelisting spf IPs from major email providers fixes that. > > SPF can help. It's pretty fast and easy. Best of all, it really doesn't > *hurt* anything. If there are no SPF records then you don't do anything. > But if someone's claiming to be from gmail.com and the IP isn't in the > SPF then you know it's bad. > > -- > Darrin Chandler | Phoenix BSD Users Group > dwchandler@stilyagin.com | http://bsd.phoenix.az.us/ > http://www.stilyagin.com/ | > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change you mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > ...if any of you want to read up on the ideas behind greylisting, there is a good "white paper" at: http://projects.puremagic.com/greylisting/whitepaper.html just F Y I -- Mike Schwartz Glendale AZ schwartz@acm.org Mike.L.Schwartz@gmail.com