unable to see the DL.

Question

Hi All

I am facing issue with Distribution List. When i try to create the DL from Exchange Online PowerShell i am getting the below error. There are multiple recipients matching identity "MYDL1". Please specify a unique value.

When i use the below syntax from PowerShell, i can see the DL but i am unable to see it in GUI i.e from M365 admin center or Exchange Admin Center. please guide me.

Get-EXORecipient -ResultSize Unlimited | Where-Object {$_.EmailAddresses -match "SMTP:******@contoso.com"} | fl Name, RecipientType, EmailAddresses, DisplayName, Alias

Name           : MYDL1
RecipientType  : MailUniversalDistributionGroup
EmailAddresses : {SMTP:******@contoso.com}
DisplayName    : MYDL1
Alias          : mydl1

What is the syntax to delete the Distribution List.

Answer 1

Hi, @Glenn Maxwell

According to your error message, this means that there are multiple recipients (users, groups, or contacts) in the tenant that share attributes (e.g. Aliases, etc.) that match “MYDL1”. This can be verified by the output of the command you provided.

You can try the following suggestions:

1.Ensure that you specify a unique identifier when creating the distribution group. You can use different aliases or names to avoid conflicts.

2.If you can see the distribution group in PowerShell but not in the GUI, it may be due to replication delays or visibility settings. You can check the visibility settings with the following command:

Get-DistributionGroup -Identity "MYDL1" | Format-List DisplayName, HiddenFromAddressListsEnabled

Make sure HiddenFromAddressListsEnabled is set to False.

To unhide it, run:

Set-DistributionGroup "MYDL1" -HiddenFromAddressListsEnabled $false

3.Use PowerShell to delete the list of distribution group.

Remove-DistributionGroup -Identity "MYDL1" -Confirm:$False

More information can be found Remove-DistributionGroup (ExchangePowerShell) | Microsoft Learn

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