Exchange 2007 requires Domain Native mode? Share on Facebook Post on reddit Tweet on Twitter Share on LinkedIn Home › Forums › Messaging Software › Exchange 2007 / 2010 / 2013 › Exchange 2007 requires Domain Native mode? This topic has 2 replies, 2 voices, and was last updated 13 years, 11 months ago by Sembee. Viewing 1 post (of 1 total) Author Posts bmhskMember Feb 13, 2007 at 6:42 am #121264 Hello, I have a single forest with a top domain and 2 subdomains in it. My Exchange 2003 Organisation and servers is all installed in the Top Domain. Ive run Best Practice Analysers which tells me that my subdomains are running Active Directory in mixed mode. I know that Exchange Server 2007 requires you to run AD in Native mode, but is that only for the domain which it belongs too or all domains in the forest? Thanks in advance. Heino Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.