Office 365 – Distribution List Migration – Version 2.0 – Table of Contents

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Interested in content regarding Office 365 and Distribution List Migrations. The following table of contents links to relevant articles regarding the Distribution List Migration Module Version 2.

 

 

 

GitHub Repository – DLConversionV2

 

PowerShell Gallery – DLConversionV2

 

Office 365 – Distribution List Migrations Version 2 – Part 1

 

Introduction to the Distribution List Migration Module version 2.0

 

Office 365 – Distribution List Migrations Version 2 – Part 2

 

Preparing to use the distribution list migration v2 module.

 

Office 365 – Distribution List Migrations Version 2 – Part 3

 

Using the distribution list migration module v2 for simple migrations.

 

Office 365 – Distribution List Migrations Version 2 – Part 4

 

Retaining the original distribution group post migration…

 

Office 365 – Distribution List Migrations Version 2 – Part 5

 

Gathering advanced dependencies for a group to be migrated.

 

Office 365 – Distribution List Migrations Version 2 – Part 6

 

How does the module track distribution lists that have been migrated?

 

Office 365 – Distribution List Migrations Version 2.0 – Part 7

 

Enabling hybrid mail for for migrated distribution lists.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 8

 

Performance updates and enhancements.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 9

 

Introducing multiple distribution list migrations / batch migrations.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 10

 

Additional code improvements…

 

Office 365 – Distribution List Migrations Version 2.0 – Part 11

 

Improvements in error handling in version 2.4.8.x

 

Office 365 – Distribution List Migrations Version 2.0 – Part 12

 

Announcing multiple migration machine support.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 13

 

Enabling support for partially mail enable distribution groups.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 14

 

Enabling hybrid mail flow post migration.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 15

 

Enabling migration support for non-synchronized groups.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 16

 

Mail flow issues with centralized mail transport enabled and migrated distribution groups.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 17

 

I need assistance with the migration module, have a suggestion, or want to request a feature.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 18

 

New handling of recipient restrictions assigned to the migrated distribution groups.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 19

 

New handling of distribution group creation during migration to eliminate ambiguous references.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 20

 

Adding a new method to verify the distribution list is directory synchronized.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 21

 

Preparing for the deprecation and disablement of basic authentication.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 22

 

The end of basic authentication in Exchange Online…

 

Office 365 – Distribution List Migrations Version 2.0 – Part 23

 

Collecting telemetry for performance improvements and usage statistics.

Office 365 – Distribution List Migrations Version 2.0 – Part 24

 

Issues encountered with large distribution list migrations.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 25

 

Large distribution list migrations and code enhancements to increase performance and reliability.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 26

 

New handling of nested distribution groups in multiple distribution group migrations.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 27

 

Increasing the performance of multiple distribution list migrations.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 28

 

Implementing exception codes.

 

Office 365 – Distribution List Migrations Version 2.0 – Part 29

 

Implementing the ability to migrated directly from on-premises distribution lists to Office 365 Unified Groups

 

Office 365 – Distribution List Migrations Version 2.0 – Part 30

 

Converting a cloud only distribution list to an Office 365 Unified Group

Office 365 – Distribution List Migrations Version 2.0 – Part 31

 

Enabling support for interactive authentication and single list migrations

ffice 365 – Distribution List Migrations Version 2.0 – Part 32

 

Enabling support for a custom routing domain

Office 365 – Distribution List Migrations Version 2.0 – Part 33

 

Testing a distribution list pre-migration

Office 365 – Distribution List Migrations Version 2.0 – Part 34

*IMPORTANT* Preparing for MS Graph Implementations

Office 365 – Distribution List Migrations Version 2.0 – Part 35

 

Improved handling for mailbox folder permissions, full mailbox access permissions, and send as permissions.

Office 365 – Distribution List Migrations Version 2.0 – Part 36

 

YouTube Tutorial – Introduction to Distribution List Migration 2.0 Module

Office 365 – Distribution List Migrations Version 2.0 – Part 37

 

YouTube Tutorial – Planning distribution list migrations with the Distribution List Migration 2.0 Module

Office 365 – Distribution List Migrations Version 2.0 – Part 38

 

Enabling support for migrations with a pre-defined name prefix or suffix.

Office 365 – Distribution List Migrations Version 2.0 – Part 39

 

Implementing improved error handling and error cleanup.

3 thoughts on “Office 365 – Distribution List Migration – Version 2.0 – Table of Contents”

  1. Nick Estes

    Impressive amount of work! I’ve gotten lost in the documents on dealing with nested groups. We have some very large trees with many circular nesting of groups going on. Some even 3 or 4 DL circles and all in the same tree. structure. It doesn’t seem this will work.

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    1. TIMMCMIC Post author

      Nick:

      So here is how nesting works. When you specify a group of SMTP addresses to be migrated with start-multipleDistributionListMigration if a parent is tried before a child then the parent is put in a retry queue. If the child was included in the migration set originally – then the parent is retried after a full pass is done.

      So take this structure

      Parent1
      Child1
      Child1A

      If all three were specified Child1 and Parent1 would fail. Parent1 and Child1 would be retried. On the second pass parent1 would fail and be retried because Child1 was in the set.

      Now if you have something like this.

      Parent1 contains child 1
      Parent2 contains child2
      Child2 contains child1 and child1 contains child2 this will not automaticlly retry since there is no a circular dependency. You’d have to remove child1 or child2 from each other and do a migration – then add the contact back that is created.

      Circular nesting can certainly bring about challenges.

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