Manage Microsoft 365 Groups with PowerShell

This article applies to both Microsoft 365 Enterprise and Office 365 Enterprise.

This article provides the steps for doing common management tasks for Groups in Microsoft PowerShell. It also lists the PowerShell cmdlets for Groups. For info about managing SharePoint sites, see Manage SharePoint Online sites using PowerShell.

Link to your Microsoft 365 Groups usage guidelines

When users create or edit a group in Outlook, you can show them a link to your organization's usage guidelines. For example, if you require a specific prefix or suffix to be added to a group name.

Use the Microsoft Graph PowerShell to point your users to your organization's usage guidelines for Microsoft 365 groups. Check out Microsoft Entra cmdlets for configuring group settings and follow the steps in the Create settings at the directory level to define the usage guideline hyperlink. After you run the Microsoft Entra cmdlet, users see the link to your guidelines when they create or edit a group in Outlook.

Allow users to Send as the Microsoft 365 Group

If you want to enable your Microsoft 365 groups with Send As permissions, use the Add-RecipientPermission and Get-RecipientPermission cmdlets. After you configure the permissions, Microsoft 365 group users can use Outlook or Outlook on the web to send and reply to email as the Microsoft 365 group. Users can go to the group, create a new email, and change the Send As field to the group's email address.

(You can also configure Send As permissions in the Exchange Admin Center.)

Replace <GroupAlias> with the alias of the group that you want to update, and <UserAlias> with the alias of the user to whom you want to grant permissions. Connect to Exchange Online PowerShell and then run the following commands:

$groupAlias = "<GroupAlias>"

$userAlias = "<UserAlias>"

$groupsRecipientDetails = Get-Recipient -RecipientTypeDetails GroupMailbox -Identity $groupAlias

Add-RecipientPermission -Identity $groupsRecipientDetails.Name -Trustee $userAlias -AccessRights SendAs

After you run the previous commands, users can go to Outlook or Outlook on the web to send as the group, by adding the group email address to the From field.

Create classifications for Microsoft 365 Groups in your organization

You can create sensitivity labels that the users in your organization can set when they create a Microsoft 365 Group. If you want to classify groups, we recommend using sensitivity labels instead of the previous groups classification feature. For information about using sensitivity labels, see Use sensitivity labels to protect content in Microsoft Teams, Microsoft 365 groups, and SharePoint sites.

You can still use the previous groups classification feature. You can create classifications that the users in your organization can set when they create a Microsoft 365 Group. For example, you can allow users to set Standard, Secret, and Top Secret on groups they create. Group classifications aren't set by default and you need to create it in order for your users to set it. Use Microsoft Graph PowerShell to point your users to your organization's usage guidelines for Microsoft 365 Groups.

Check out Microsoft Entra cmdlets for configuring group settings and follow the steps in the Create settings at the directory level to define the classification for Microsoft 365 Groups.

$setting["ClassificationList"] = "Low Impact, Medium Impact, High Impact"

In order to associate a description to each classification, you can use the settings attribute ClassificationDescriptions to define.

$setting["ClassificationDescriptions"] = "Classification:Description,Classification:Description"

Where Classification matches the strings in the ClassificationList.

Example:

$setting["ClassificationDescriptions"] = "Low Impact: General communication, Medium Impact: Company internal data , High Impact: Data that has regulatory requirements"

After you run the previous Microsoft Graph PowerShell command to set your classification, run the Set-UnifiedGroup cmdlet if you want to set the classification for a specific group.

Set-UnifiedGroup LowImpactGroup@constoso.com -Classification LowImpact

Or create a new group with a classification.

New-UnifiedGroup HighImpactGroup@constoso.com -Classification HighImpact -AccessType Public

Check out Using PowerShell with Exchange Online and Connect to Exchange Online PowerShell for more details on using Exchange Online PowerShell.

After these settings are enabled, the group owner can choose a classification from the drop-down menu in Outlook on the Web and Outlook, and save it from the Edit group page.

Hide Microsoft 365 Groups from the global address list.

You can specify whether a Microsoft 365 Group appears in the global address list (GAL) and other lists in your organization. For example, if you have a legal department group that you don't want to show up in the address list, you can stop that group from appearing in the GAL. Run the Set-Unified Group cmdlet to hide the group from the address list like this:

Set-UnifiedGroup -Identity "Legal Department" -HiddenFromAddressListsEnabled $true

Allow only internal users to send message to Microsoft 365 Groups

If you don't want users from other organizations to send emails to a Microsoft 365 Group, you can change the settings for that group. It allows only internal users to send an email to your group. If an external user tries to send a message to that group, it's rejected.

Run the Set-UnifiedGroup cmdlet to update this setting, like this:

Set-UnifiedGroup -Identity "Internal senders only" -RequireSenderAuthenticationEnabled $true

Add MailTips to Microsoft 365 Groups

Whenever a sender tries to send an email to a Microsoft 365 Group, a MailTip can be shown to them.

Run the Set-Unified Group cmdlet to add a mailTip to the group:

Set-UnifiedGroup -Identity "MailTip Group" -MailTip "This group has a MailTip"

Along with MailTip, you can also set MailTipTranslations, which specify other languages for the MailTip. For example, to have the Spanish translation, run the following command:

Set-UnifiedGroup -Identity "MailaTip Group" -MailTip "This group has a MailTip" -MailTipTranslations "@{Add="ES:Esta caja no se supervisa."

Change the display name of the Microsoft 365 Group

The display name specifies the name of the Microsoft 365 Group. You can see this name in your Exchange admin center or Microsoft 365 admin center. You can edit the display name of the group or assign a display name to an existing Microsoft 365 Group by running the following command:

Set-UnifiedGroup -Identity "mygroup@contoso.com" -DisplayName "My new group"

Change the default setting of Microsoft 365 Groups for Outlook to Public or Private

Microsoft 365 Groups in Outlook are created as Private by default. If your organization wants Microsoft 365 Groups to be created as Public by default (or back to Private), use this PowerShell cmdlet syntax:

Set-OrganizationConfig -DefaultGroupAccessType Public

To set to Private:

Set-OrganizationConfig -DefaultGroupAccessType Private

To verify the setting:

Get-OrganizationConfig | ft DefaultGroupAccessType

To learn more, see Set-OrganizationConfig and Get-OrganizationConfig.

Microsoft 365 Groups cmdlets

The following cmdlets can be used with Microsoft 365 Groups.

Related articles

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Manage guest access to Microsoft 365 Groups

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