Can this be done? If so, can anyone explain how to do it. I am an exchange novice, we currently use a pop server at our company. We want to upgrade to excahnge 2007 so we are trying a trial version. Install is going great, everything is working. But without Domainkeys... exchange is not a candidate for our company. Thanks mitch

Up to now MS Exchange does not support domainkeys likely because MS developed a compentent technologySPF.However, there is a thrid party application that creates domainkeys for Exchange server. Here the technical document: http://www.emailarchitect.net/domainkeys/doc/html/object_deploy.htm http://www.emailarchitect.net/domainkeys/