Exchange 2003 – Exchange Online Co-Existence

A customer recently asked me how do we enable co – existence between Exchange 2003 and Exchange Online wave 15. The upgrade path from 2003 to 2013 on premise or Exchange online can take a few too may steps. So as per my previous blog posting , I have chosen Quest On Demand as my migration tool of choice for moving customers to Exchange Online.

A cut over migration using the Exchange Online native migration tools is often not practical for enterprise customers , simply because of the volume of data , amount of users , bandwidth.

So Quest on Demand comes to the rescue.
In this example I will using contoso.com as the external email domain and will not be using windows azure directory sync and will describe in sequence the steps required for co-existence.

  1. Add contoso.com to the domains section in your exchange online tenant , verify ownership of the domain and then set the domain usage to use exchange online.
  2. On the exchange 2003 server, browse to exchange system manager , expand mailboxes and then in the actions menu , export to list. This will export a list as a text file which you can then open in Excel. I normally then present this excel file to my customer and ask them to remove users that do not require migration. Once that has been done , we have our user list for migration.
  3. The next step is to bulk create exchange online external contacts. The method for creating exchange online contacts is described HERE in an Office365 Wiki Page. We will use the user list that was exported from exchange 2003 to populate the csv for external contacts. I normally create contacts for all existing mail users.
  4. We then Create an Outbound Connector for Contoso.com with the following configuration.
    Name: Contoso.com
    Connection Type: on premise
    Retain Service Headers on Transmission: True
    Connection Security: Opportunistic TLS
    Outbound Delivery: Route mail through smart host
    (add in the name of the mx record value for contoso.com)
    Domains: Contoso.com
  5. * Lets say we were migrating 50 users per evening.
  6. We would delete the external contacts for the users that we want to migrate and run the following commands in the windows azure active directory module for powershell Get-MsolUser –ReturnDeletedUsers | Remove-MsolUser –RemoveFromRecycleBin -force
  7. We would then create the users in Exchange Online via the sample user csv and populate the csv with the user details we obtained from exporting user details from exchange online.
  8. We would then set the usage location with the following command  in the windows azure active directory module for powershell
    Get-MsolUser -UnlicensedUsersOnly |Set-MsolUser -UsageLocation IE
  9. We would then assign a license to the users we created  in the windows azure active directory module for powershell.
    Get-MsolUser -UnlicensedUsersOnly | Set-MsolUserLicense -AddLicenses “Contoso”:EXCHANGESTANDARD
  10. Now we are ready to use Quest On Demand. We use the same user names that we just created to create the Quest On Demand migration text file.
  11. Quest on Demand will also allow us to set the forwarding per user. The on premise user’s mailboxes will forward mail to each user@contoso.onmicrosoft.com. When email arrives at the Exchange 2003 server , if the user is an exchange online user then then mail is forwarded to the user’s proxy address.
  12. Lastly add : spf.protection.outlook.com to your existing SPF record.
And that is it. 

Exchange online users can browse the global address list and send email to users and not know where the mailbox is located in Exchange online or Exchange 2003 on premise.

Exchange 2003 users can browse their global address list and send email to users and not know where the mailbox is located in Exchange online or Exchange 2003 on premise.

Note:
When an Exchange 2003 mailbox has been migrated to Exchange online the user must have a minimum Outlook client version of Office 2007 SP3 should they wish to use a full Outlook client.

Quest on Demand Email Migration to Office365

I do not mean to sound like a Quest Sales Man , But this product from Quest truly is a super product.

It allows you to migrate email from the following sources.

Microsoft Exchange 2000/2003/2007/2010
IMAP
Lotus Notes
Microsoft Bpos
Microsoft Live@edu
Microsoft Office365
Novell Groupwise
Sun One / iPlanet
Pop
Windows Live Hotmail

You can then migrate to the following targets

Microsoft Exchange 2010/2013
Office365
Microsoft Live@edu

So why would you use this service?

A couple of reasons, It is hosted in Windows Azure and can allow for zero touch migrations.Exchange 2007 messaging platforms upwards give us the ability to implement hybrid environments which can then create a platform which will allow rich co-existence and migration.

Its a hell of a lot cheaper than the full email migration products from quest.

It can migrate from Lotus Notes!!!

I have worked on quite a few corporate companies that  acquire companies. Extracting email from a business first before an AD consolidation project makes the AD consolidation project a lot easier and a tool like this allows zero touch email extraction into a companies own on-premise exchange messaging environment or into my preferred platform Office365.

I have taken some screen shots of how easy the wizard is to begin a migration. In this example I   wanted to migrate from Exchange 2010 to Office365 wave15. So before I did that , I created an application impersonation role in the exchange 2010 on-premise environment and one in the Office365 environment.

After that we sign into the Quest On Demand Portal HERE

Then agree to the service’s agreement and select your data center location.

Then create a Migration Plan. There are four simple steps.

  1. Connect to the email services
  2. Import Mailboxes
  3. Choose what to migrate
  4. Migrate
On the connections tab you connect to the source exchange 2010 messaging platform and enter the credentials of an account that has the application impersonation. There is a test connection tab to verify connectivity.

Then you connect to the target , in this case Office365. You will need to add an exchange license to the office365 account in order to make it a member of the application impersonation group. Microsoft throttle the amount of data that can be migrated into Office365. So you can add multiple accounts for the target to increase migration throughput.

In section 2 you specify the source and target mailbox which is populated by a simple text file.
You then select what to migrate.

Finally you begin migration.

And once all the mail has been extracted from the business and when the ad consolidation project has been complete , you can refer to one of my previous blogs HERE on how to convert existing Office365 users to federated users.

Quest NME migrations with Exchange Online Wave 15

I have done quite a few Lotus Notes to Exchange online migrations using Quest’s Notes for Exchange migration toolkit.

One of my favorite features is the admin pool. 

So what is the admin pool? The admin pool creates a pool of global administrators that can be used for migrations as Microsoft throttle the amount of data that can be migrated per user name. An example of an admin pool is displayed below.


This feature works great when migrating to a Wave 14 Exchange online tenant but not so well when migrating to a Wave 15 tenant.If you want to use an admin pool to migrate to a wave 15 you need to submit a service request to Microsoft and below is an extract with the instructions from Quest.

Microsoft has informed our Product Team that they are changing the procedure for requesting exemption to the PowerShell throttling.
Each Tenant Admin, as an Office365 customer, please submit a service request individually. Microsoft would like to receive requests directly from the Tenant Admin.
The Tenant Admin should open a service request and reference “Bemis Article: 2835021”.  The Microsoft Product Group would also need following information in the request:
1.     The tenant domain (tenant.onmicrosoft.com)
2.     The version of Exchange (These requests should all be for Wave15)
3.     The number of mailboxes that are being migrated
4.     The number of concurrent admins accounts that will be used for the migration
5.     The number of concurrent threads that will be in use
6.     The number of runSpaces will be created per minute
7.     The proposed limit (powershellMaxTenantRunspaces, powershellMaxConcurrency, etc.) and number to increase the limit to
For items 6 and 7, Tenant Admin may probably need to take the total number of threads across all migration machines that you plan to use and add a buffer because it is not easy to know in advance how the timing of the runSpaces will occur.
As a result, it may be safe to assume that  all potential runSpaces could be created within a minute, so 6 & 7 should probably both be submitted as the total number.
More Information About # 6 & 7
If there are 5 migration consoles designated for the migration and running 3 threads each, it is safe to assume that you may have 15 runSpaces created per minute.
In case of you may decide to increase threads or add migration consoles later, even it is safe to assume that you may have 15 runSpaces per minute, to provide a buffer, you may want to ask 25 or 50 (each)  powershellMaxTenantRunspaces, powershellMaxConcurrency, etc. 

Microsoft will only do this for a minimum of 1000 users that are migrating to Exchange online. 

So the way I got around it was by doing the following.In this instance there were 3 nme migration machines.

  1. Create New-ManagementRoleAssignment -Role “ApplicationImpersonation” –User admin@contoso.onmicrosoft.com
  2. Then create 3 nmeadmin accounts and assign an exchange online license to each account.
    nmeadmin1@contoso.onmicrosoft.com
    nmeadmin2@contoso.onmicrosoft.com
    nmeadmin3@contoso.onmicrosoft.com
  3. Install the Windows Azure Directory module for powershell on each nme machine which you can download HERE
  4. Create an Admin Role called Quest , add in the following roles
    Application Impersonation & Migration
    as per the image below
  5.  Add the 3 nmeadmin accounts as members to this role.
  6. Add the 3 nmeadmin accounts as members to the Organization Management – Admin Role
  7. On each of the nmeadmin machines configure an Outlook client for each of the nemadmin accounts. So one account per machine and do not enable caching.
  8. So when you come to the point of migrating enter nmeadmin1 credentials into the migration wizard on machine1 , nmeadmin2 credentials on machine2 and nmeadmin3 credentials on machine 3 as per the image below.
This will then allow you to migrate from Lotus notes to Exchange online wave 15. I am sure Quest will resolve the admin pool issue as it is such a cool feature and really speeds up for migrations.

At the time of writing this post this relates to Quest NME version 4.7.0.82 displayed below.



QUEST NME unable to create admin pool

In the image above I ran into an issue when trying to create an admin pool for on Quest Notes For Exchange migration toolkit.This was for a migration to Exchange Online.

So the first thing i did was set-executionpolicy unrestricted -force on both the x64 and x32 versions of powershell. But that didn’t fix the issue.

Most enterprises have quite a few group policies and sometimes these policies are applied before the machines have been moved to an OU that has inheritance blocked.

So to remove the group policies causing the issue. 

Browse to HKLM\Software\micrsoft\windows\currentversion\group policy and then delete any S-x-x-xx-xxxxxxxxxxxxxx keys.
Ensure you have the Windows Azure Active Directory Module for powershell installed on all the nme machines.

Once I had removed all the group policies I could create the admin pool and proceed with migrations.

Exchange Hybrid Mailbox Migrations slow when using TMG

When using Exchange online in Hybrid mode , if you want to have a unified global address list with exchange online users and onpremise users then you need to create on premise blank mailboxes for the users that you want to use exchange online and then create ‘remote move requests‘ to move the onpremise mailboxes to exchange online.

During the move request , if you open the log you may see ‘Relinquishing job because the mailbox is locked‘

So in order to fix this and really speed up the remote move requests we need to go to the intrusion prevention section of TMG and then the Behavioral Detection\Configure Flood Mitifgation Settings as per the image below.

We click on the link for Configure Flood Mitigation Settings and then click on ‘IP Exceptions‘ and create a new computer set. In the image below I called it ‘Exchange Online Protection‘ and add a computer set with the exchange online protection range as per the image below

All of the Exchange Online Protection IP ranges can be found at this SITE 

You can susbscribe via RSS feed HERE to the Microsoft Online IP Ranges 

So now Remote move requests will migrate a lot quicker 🙂