It is supported and sort of documented - as long as you know the secret word: SupportMultipleDomain
http://blogs.technet.com/b/abizerh/archive/2013/02/06/supportmultipledomain-switch-when-managing-sso-to-office-365.aspx <rant> Office 365 is one of the most half-baked "products" Microsoft has ever released. They tried hard to get us to let consultants set up our federation, and after days of beating my head on the wall getting it going, I understand why: Microsoft doesn't document it very well, and most of the other stuff you'll find on the web is wrong (out of date). Even the O365 portal links to the wrong version of DirSync - and to make matters even worse, it does link to the right version's release notes. </rant> From: [email protected] [mailto:[email protected]] On Behalf Of Jeff S. Gottlieb Sent: Thursday, July 25, 2013 8:56 PM To: [email protected] Subject: [NTSysADM] ADFS - MULTIPLE DOMAINS We are using Server 2012, ADFS (DIR SYNC), controlling the attributes of o365. Does anyone have any experience as this applies to multiple domains? MS claims to have documentation that was unsupportive of this scenario unless 2 ADFS servers were used, as of 5/15/2013. When I asked if they could send the documentation, we were told it was "internal". MS then turned around and said it was supported in ADFS v2, but later said this was "largely untested" ...if it can be done, then the procedures are not clear. Microsoft documentation is like digging down the rabbit-hole! Agh! -Jeff
