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Post Info TOPIC: Migration Exchange to Office 365 Tenant.


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Migration Exchange to Office 365 Tenant.
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You may want to perform the migration of Exchange to Office 365 tenant. EdbMails Exchange to Office 365 Migration tool will delivers a systematic approach with sustained transfer speed for your Source Exchange data. While performing the migration it avoids the disturbance and data loss issue, it supports cutover, staged, and hybrid migration easily with EdbMails Exchange migration tool.

EdbMails Exchange migration is a user-friendly, professional migration tool for your complete enterprise-level organization migration. High performance, secure and incremental (no duplicate) migration. Download and install EdbMails Application on your Computer. All you have to do is that connect the source and the target server using appropriate credentials.
 
 You may want to go with EdbMails Exchange Migration also for other reasons like:
•    It is compatible with all windows operating system.
•    Direct migration to another Exchange server (no double-hop);
•    Supports all Exchange server versions like 2007, 2010 2013, and 2019.
•    Automatically sets the impersonation rights in the target server.
•    Reconnects automatically and continues the migration operation if there is intermittent connection issue.
•    Performs cross forest, cross domain migrations

 

Know More: Exchange 2010 to Office 365

 



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Kylie Jenner

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Step 1. Domain Preparation
Prepare the domain with the following steps:

  • Ensure that you have enough licenses for the target Microsoft 365.
  • Create admin accounts in both the source and target to perform the migration smoothly.
  • Create user mailboxes, room/resource mailboxes, and distribution groups in the target.
  • If needed, perform AD DS consolidation using AD DS tools and sync source domain with the target domain manually or using synchronization.
  • Train your end users regarding the post-migration use of Microsoft 365.

 

Step 2. Domain verification

  • Start verification of target tenant domain in Microsoft 365.
  • Add a source domain in the target Microsoft 365 admin center and create TXT records in DNS.
  • Make sure the domain is in use only one tenant. Otherwise, the verification will fail.
  • After performing these steps, it will take around 72 hours for the change to be seen.


Step 3. Migration Scheduling

  • Generate a list of user mailboxes that are to be migrated and create a CSV file for mapping.
  • Note the lowest value of TTL on MX record (of the primary email domain).
  • Disable directory sync for source tenant (from Microsoft 365 admin center) to avoid sync of any modifications in source tenant account AD DS to Microsoft 365 platform. It can take a minimum of 24 hours to complete the disabling process.

Step 4. Migration Stage

  • Stop inbound mail flow
  • Stop inbound mail flow to the source tenant by changing the primary MS record to an unreachable value or by using a third-party service. As you have noted the lowest value of TTL on MX record (of primary email domain) in your preparation step, you can plan the time of this step easily.


Source tenant preparation
Before moving the Office 365 mailbox to another tenant, the primary mail domain should be erased from all objects in the source tenant.

  • Reset the default email address to the initial email address of Microsoft 365.
  • Remove all the Lync licenses from the source tenant with the help of Lync Admin Portal.
  • Reset the default email address of distribution lists, rooms, resources to the initial domain.
  • Remove the secondary email address from all tenant objects.
  • In the Windows PowerShell, run the command Get-MsolUser -DomainName xyz.com that will retrieve all the objects still using the primary email address or refusing the removal.
  • Preparing the target domain
  • It involves verifying the source tenant in the target domain (do one hour after the previous step).


Configure the auto-discover CNAME.

  • When you use AD FS, you’ll have to configure a new domain in target tenant for AD FS.
  • Activate the new user accounts in the target domain and assign licenses.
  • On the new users, set the source domain as the primary email address (done using Windows PowerShell). Also, decide on communicating the passwords to end users.
  • When the user mailboxes are active, change the mail routing and point the MX record to the new Office 365 email address.
  • Test the mail flow in and out of the target tenant.

 

Hope this helps you out,

J Wick



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Exchange Converter Tool is a consistent application for migrating single or multiple EDB to Office 365. It converts EDB files in PST, EML, EMLX, MSG, Office 365, Live Exchange, and MBOX formats. Also, users can use the utility to convert Exchange in Office 365 individually. It is skilled in exporting large mailbox files with all their items mail, contacts, calendar, etc. This migration app supports all Windows OS and Outlook versions like 2019, 2016, 2013, 2010, etc.

Visit here: www.sametools.com/exchange/

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