O365 Exchange Setup

[funkyfin2000]

Hi Guys,

 

Can anyone help with this scenario...

 

If I have a O365 tenancy linked to a domain (say test.co.uk) and I have this linked to a single active directory through DirSync/ADFS then everything is good...all AD users flow into this tenancy and we setup email and all users get [email protected] setup.

 

What happens if I add multiple domains into O365, so for example, I add test2.co.uk and test3.co.uk.

 

Where do the users from the single AD flow to? How do I allocate them to the test2.co.uk domain and some to the test3.co.uk domain.

 

I suppose what I'm trying to say, is if I have a multi academy setup with a single AD at the top of the structure who want to manage the tenancy of O365 but each school want their own domain identity for email how does O365 manage this?

 

Any help gratefully received!

 

Rich

[funkyfin2000]

Anyone on this??

[snagrat]

Hi.

 

The email address will be assigned based on the email address field within AD. I always assign the UPN of the user in AD to the same to ensure login and email address are the same. Therefore just make sure the user has the correct UPN for the domain you want them to have.

 

If you want them to have additional address (even across different domains) then edit the Proxyaddress attribute using format SMTP:[email protected] and smtp:[email protected]. The CAPS SMTP means it the default address.

 

Does that help?

[funkyfin2000]

Thanks @snagrat that's useful.

 

So effectively, if I had one AD with multiple users in it from multiple schools if I filled in the address field in AD with [email protected] and [email protected] and [email protected] and all three domains were verified and part of Office 365 then users would be created email address under the correct domain?

 

Is that the right understanding?

 

Really appreciate your response on this.

 

Rich

[snagrat]

Yes that should work.

 

But that is only email address, which is different to the login.

 

The UPN would need to be set to whatever you wanted the username to be, else they get an @onmicrosoft.com login.

 

Login and email address can be different but based to have them the same

[funkyfin2000]

When you say UPN - you mean their Unique Pupil Number from their MIS system? Or you mean the UPN field in AD for their username so if I wanted it to be ttest I'd need to set the UPN as Ttest and fill in their email field as [email protected] and then another usermight be Ttest2 and fill in their email field as [email protected] for example?

 

In this particular case I would want their username to be based on their login to the network and not be different, I would be using ADFS and Dir Sync...

 

Sorry for the questions

[snagrat]

Yes AD UPN. (I don't so SIMS so anything I suggest is all AD related)

 

If you want the login to be the same as the network then that is fine but it needs to be a domain Office recognises. For example if your domain is domain.local this will not work. You would have to add an additional domain suffix of domain.sch.uk and ensure that in AD the user is assign the correct domain.

 

Hope this makes sense

[funkyfin2000]

So I get that..with this example, all users are on a single forest and single internal domain!

[snagrat]

That shouldn't matter as you can add additional domain suffix http://support.microsoft.com/kb/243629

[funkyfin2000]

Thank for your help @snagrat