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Move from Staged Hybrid Migration to full Exchange Online
Good Day,
I have moved and finalized approx 60 mailboxes from Exchange 2010 On premisis to Exchange online.
Currently all mail clients are pointing to Exchange online, however mail is still being delivered on-premise as well.
The following article on decomissioning on-premisis has been helpful, however just need to get a plan solidified.
https://technet.microsoft.com/en-us/library/dn931280(v=exchg.150).aspx
Currently, no MX records have been changed to redirect mail permanently.
I would still like to use ADSync after the cutover to unify password management between on premise and online, however I would like to do all exchange managent from portal administration.
I would like to completely decomission on-premise exchange post cutover.
Can anyone share any info on whether the scenario outlined is possible at all and what I need to do to accomplish it?
Thanks
Every configuration involving dirsync, including password sync, requires you to keep an Exchange box for management purposes. Otherwise you will be in "unsupported" configuration. You dont have to follow the Microsoft recommendations on it, you can manage the objects just fine with other tools, but you riks being denied support.
Here's an example article that goes into more detail: https://blogs.msdn.microsoft.com/vilath/2015/05/25/office-365-and-dirsync-why-should-you-have-at-least-one-exchange-server-on-premises/
19 Replies
You cannot have both. You either manage the accounts directly in O365, which means no password sync, or use dirsync/password sync, but manage them on-premises. The latter also requires you to keep one Exchange box for management purposes, if you want to stay in "supported" scenario. If you don't care about that part, you can just manage them via ADUC/PowerShell/whatever.
I have AD Sync configured on on-premisis domain controller.
I did not realize that in order to syncronize passwords I would have to keep my exchange box around. Is this correct?
I want to completly decomission my exchange server. If this means that I lose the ability to sync passwords then so be it. Just seems strange.
Is there a way to easlily "enable" management from the Admin Portal?
Keith CainesActually, this is not longer the case. Because now there is ad connect. Ad Connect allows you to sync passwords only, without an exchange server.
