So… Google’s GMail is now using DomainKeys to authenticate an SMTP sender’s domain. Yahoo has implemented the same thing; sending e-mail there is a dice-roll.
Are there any plans or discussions to implement DomainKeys support in Domino?
Here are some links with more information:
http://chris-linfoot.net/plinks/CWLT-5ZAL3H
Subject: 3rd party solution
FYI, GreyBeard support SenderID as well as greylisting: http://www.keysolutions.com/greybeard