Guest of a Group in Outlook doesn't receive email conversations
Applies To
Outlook for Microsoft 365 Outlook 2024 Outlook 2021 Outlook 2019 Outlook 2016 Outlook 2013 Outlook on the web Outlook.com Outlook 2010 Outlook on the web for Exchange Server 2016 Outlook on the web for Exchange Server 2019 Outlook Web AppWith guest access in Microsoft 365 Groups, organizations can collaborate with external users who use email accounts that aren't part of Microsoft 365. If the guest user you invited is listed as a group member but isn't receiving any email or group conversations, verify the following:
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You've added the person as a guest and your organization allows guest permissions. See: Adding guests to Groups in Outlook
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Group messages aren't going to the guest user's junk email folder
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The guest user's email provider isn't rejecting the group messages
Next, find out if the guest was invited from SharePoint in Microsoft 365 and Azure Active Directory B2B. If so, you probably have a configuration issue in your directory. Ask your IT admin to solve the problem by following this three-step procedure:
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Download and install the Microsoft Graph Powershell.
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Run a series of PowerShell commands to pull up the guest user account properties.
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Repair the guest account configuration.
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Download and install the 64-bit version of the Microsoft Graph Powershell.
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Connect to Microsoft Graph Powershell by using your company admin credentials.
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Run the following cmdlet:
Connect-AzureAD
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On the Enter Credentials page, enter your Microsoft 365 global admin credentials. See Assign admin roles in Office 365 for more information about roles in Microsoft 365.
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Look up the invited user and properties based on the email address in OtherMail property.
Get-AzureADUser -All $true | ?{$_.OtherMails -eq " misconfiguredguestemail@organization.com"} | fl-
If the primary SMTP field is empty and OtherMail field has multiple values then the guest user account is not configured properly. Here's an example:
Option 1: Remove the email-address from OtherMail property. This will make OtherMail a single-value property which has the same email address as invited guest email address. Note that when you remove the email address, the user loses access to all SharePoint in Microsoft 365 files that had been granted to that address.
Here is the command to remove the address:
Get-AzureADUser -ObjectId <<Userobjectid_from_above>> | Set-AzureADUser -OtherMails "<<Desired email address>>"
-OR-
Option 2: Delete this user and re-add them to the group. Note that when you delete the user, he or she will lose access to all SharePoint in Microsoft 365 files that had been granted to that user's email address.
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