Hi guys, Im busy setting up a lab environment with two different ad forests and two different exchange organizations. My goal is to setup federation between the exchange servers. Is there no other way to setup federation without using the microsoft federated gateway online? The reason for this is I dont want to create txt records and so forth, cause I think this will affect the production exchange after testing when I use the same domain names etc. Regards

Hi MrReeMan, You could refer to below: http://social.technet.microsoft.com/wiki/contents/articles/7377.fim-2010-information-about-sharing-gals-and-freebusy-information-between-two-exchange-orgs.aspx The FIM could do it. Regards! TechNet Subscriber Support in forum if you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Gavin TechNet Community Support