Unique Value error

Question

Hi team, I am unable to move some email addresses to a different folder using a rule because I am receiving the error message "There are multiple recipients matching the identity "<User>". Please specify a unique value." I have already tried troubleshooting this issue using online resources, but without success. Would you be able to provide me with update it instructions on how to fix this issue? I've been attempting to implement the 'resolution' you share with us, but is the same I found it online, but the specific option remains elusive. Could you kindly provide me with the detailed steps where we can locate the 'Exchange admin center' and 'Active Directory Users and Computers'?

Thank you.

Answer 1

Hi @Pa Michelle

Are you using Exchange Online (Microsoft 365) or Exchange on-premises (Exchange 2016, Exchange 2019)?

If you are using Exchange on-premises, please run this cmdlet in Exchange Management Shell:

Get-Recipient -identity user01 | fl identity,PrimarySmtpAddress

Example:

We can see there are actually two users sharing the same displayname user01.

From the identity field we can locate these two users in Active Directory Users and Computers:

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