Solved

Office 365 Staged Migration

Posted on 2013-10-29
6
713 Views
Last Modified: 2013-10-29
Im about to do an Staged Migration from an Exchange 2007 to Office 365.

Im following this from Microsofts TechNet:  http://technet.microsoft.com/en-us/library/jj874018(v=exchg.150).aspx

But in Best Practice in the bottum of page it says:
Inform users before you start the batch, because they'll stop receiving email sent to their on-premises mailboxes soon after the TargetAddress property is configured to forward mail to their Exchange Online mailbox.

Why does the On-Premises server stop receiving mail then i havent moved the MX record?

I trought I could create all the users and then sync all the email, test if it works on Office 365, move the MX and then make a final sync.
0
Comment
Question by:KortermannIT
  • 3
  • 3
6 Comments
 
LVL 13

Accepted Solution

by:
Xaelian earned 500 total points
ID: 39608042
Hello, your on-premise server doesn't stop receiving the mail. It just forwards it to the Exchange Online server. This only happens when the synchronisation of the mailboxes has finished.

Best you can do is perform a dirsync and then launch the staged migration. If you perform the sync of all the users it does everything. MS has done this to make sure that you don't need to resync everything once again when everything has finished.

Depending on the size of the environment I would advise you to start this migration friday night, so you can do the configuring of the desktops saturday.
0
 

Author Comment

by:KortermannIT
ID: 39608055
Then the on-premise server forwards all the email to Exchange Online Server, does it make a copy or is it moving the mail?

Right now I have made an DirSync and was about to make a staged migration, until i read that then the sync is done, the on premise would be deactivated and only Office 365 would work.

As I said in my first post, I tought I could test public folders, shared folders, mailbox etc. before i reconfigured all the clients.
0
 
LVL 13

Assisted Solution

by:Xaelian
Xaelian earned 500 total points
ID: 39608157
It doesn't make a copy on your on-premise mailbox.
When Office 365 had Exchange 2010 it was possible, but after the Exchange 2013 it wasn't.
0
Promote certifications in your email signature

Has your company recently won an award or achieved a certification? They'll no doubt want to show it off. Email signature images used to promote certifications & awards can instantly establish credibility with a recipient and provide you with numerous benefits.

 

Author Comment

by:KortermannIT
ID: 39608172
Okay, thanks! :)
0
 
LVL 13

Expert Comment

by:Xaelian
ID: 39608176
Also a quick tip: don't trust the GUI. Especially for the mailbox delegation. If you select 5+ users to have Full Access it won't place all those users into the mailbox delegation settings. Powershell is your friend.
0
 

Author Comment

by:KortermannIT
ID: 39608265
For this?
The following list shows the administrative privileges required to migrate mailboxes using a staged migration. There are three possible options.
¿ The migration administrator must be a member of the Domain Admins group in Active Directory in the on-premises organization.
 Or

¿ The migration administrator must be assigned the FullAccess permission for each on-premises mailbox AND the WriteProperty permission to modify the TargetAddress property on the on-premises user account.

But the GUI have allready screwed me. It wont accept my CSV, and the log says absolute nothing, I can use. So now I will try PowerShell (Without the auto-start feature).
0

Featured Post

Why spend so long doing email signature updates?

Do you spend loads of your time carrying out email signature updates? Not very interesting are they? Don’t let signature updates get you down. Let Exclaimer Cloud - Signatures for Office 365 make managing email signatures a breeze.

Join & Write a Comment

Disabling the Directory Sync Service Account in Office 365 will stop directory synchronization from working.
Veeam Backup & Replication has added a new integration – Veeam Backup for Microsoft Office 365.  In this blog, we will discuss how you can benefit from Office 365 email backup with the Veeam’s new product and try to shed some light on the needs and …
Microsoft Office Picture Manager has a Picture Shortcuts pane that shows a list with the Recently Browsed folders. While creating my video Micro Tutorial here at Experts Exchange showing How to Install Microsoft Office Picture Manager in Office 2013…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now