Forum Discussion
Adding a new domain (company acquisition) to existing Office 365 Environment
Hi, Our company ( hybrid, 600 E3 users) acquired a company ( calling it X 200 user exchange 2010) my question is when is the right time to add the domain name X.com to our office 365 environment. ...
Thank you, as on our company we are using hybrid exchange, which method of migration make sense?
is there any easy way to give the users access to ourdomain email address, before setting up a trust between 2 Ad`s first?
Thank you so much!
Aysan
Hi Aysani
Without doing a discovery, it is difficult to say because as you know there are many factors involved in a migration such as number of sites, business objectives, third party applications etc. However, by definition and taking into account that the Exchange 2010 server is out of support soon, then the easiest is a cutover migration where all those users move at once and then decommission of the Exchange Server, The users would be cloud users on Office 365. In this scenario you can have either domain as the primary SMTP and the other as the alias.
Whether you consolidate their AD after, so you bring them into your Hybrid Setup - I think that depends where you want to get to and how best you think to manage your users. Personally, with things moving more into the Cloud I would personally cutover onto 365 and then manage them through Azure AD with a view to coming out of Hybrid and doing all the management in Azure AD for the whole organisation. However, that's a personal opinion where others may prefer remaining in hybrid.
Best, Chris
Without doing a discovery, it is difficult to say because as you know there are many factors involved in a migration such as number of sites, business objectives, third party applications etc. However, by definition and taking into account that the Exchange 2010 server is out of support soon, then the easiest is a cutover migration where all those users move at once and then decommission of the Exchange Server, The users would be cloud users on Office 365. In this scenario you can have either domain as the primary SMTP and the other as the alias.
Whether you consolidate their AD after, so you bring them into your Hybrid Setup - I think that depends where you want to get to and how best you think to manage your users. Personally, with things moving more into the Cloud I would personally cutover onto 365 and then manage them through Azure AD with a view to coming out of Hybrid and doing all the management in Azure AD for the whole organisation. However, that's a personal opinion where others may prefer remaining in hybrid.
Best, Chris