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Microsoft Tenant Azure Sync Difficulty impacted E mail supply to DL & nested DL. Additionally sender didn’t obtain Non supply report. « MSExchangeGuru.com


Microsoft Tenant Azure Sync Difficulty impacted E mail supply to DL & nested DL. Additionally sender didn’t obtain Non supply report.

Difficulty

When Alternate on Line (EXO) Consumer despatched an e mail to a distribution listing, it didn’t ship to DL member’s and it’s nested DLs. There was NO NDR.

Affect:

Enterprise-critical communications with exterior events are severely interrupted & O365 Migration Venture timeline received delayed.

Evaluation

  • The mail which was despatched to a DL is delivered to the teams who’ve members and dropped for nested teams. The hint report exhibits the Resolver group growth error was generated in EOP.
  • The nested teams and a few of them are expanded, resolved and mail delivered to recipients. Some DLs/Teams are Expanded however not resolved and their mails are dropped in EOP O365 which suggests message not despatched to subsequent hop.
  • EventID DROP being generated at prior stage of nested group, nonetheless some nested teams recipients obtained mails of the identical Expanded teams and a few not. We tried to search out the precise DL/Group on which DROP EventID generated however on account of limitation we couldn’t do in-depth investigation as a result of growth server is positioned at MSFT. Mails could be dropped by many causes like DLs’/Teams couldn’t be discovered by Enlargement server, No members in teams, Corrupted or invalid entries. All these info

Decision

Run beneath CMDLets and validate membership between Azure and Alternate on-line.

          Azure Setting

                Get-MSOLGroupMember

          Alternate on-line (EXO) Setting

               Get-DistributionGroupMember

         Validate AD e mail objects in Azure and Alternate on-line (EXO).

If discover an e mail object not present in Alternate & exist in Azure surroundings and run beneath cmdlet to pressure the sync in case if there any adjustments

which should be replicated fast foundation.

              Get-msolgroup -searchstring “E mail” | fl *object*

              Redo-MsolProvisionGroup -Object <Guid>​

          Notice: Full tenant synchronization, could full in 24 hours.

  1. validate sync standing between Azure and Alternate on-line.

               Get-MsolUser -HasErrorsOnly

               Get-MsolGroup -HasErrorsOnly

               Get-MsolDirSyncProvisioningError

Repair object stage errors and run full tenant stage sync to converse the E mail objects throughout between Azure and Alternate On-line (EXO).

 

Vinod Kumar Singh
MCSE, MCITP – Alternate 2010, MCITP LYNC 2010, CCNA
Crew@ MSExchangeGuru

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