Applies to: Exchange Online, Exchange Server 2016

This cmdlet is available in on-premises Exchange Server 2016 and in the cloud-based service. Some parameters and settings may be exclusive to one environment or the other.

Use the New-SharingPolicy cmdlet to create a sharing policy to regulate how users inside your organization can share calendar and contact information with users outside the organization. Users can only share this information after federation has been configured in Exchange. After federation is configured, users can send sharing invitations that comply with a sharing policy to external recipients in other Microsoft Exchange Server 2013 and Exchange Server 2010 organizations that have federation enabled. A sharing policy needs to get assigned to a mailbox to be effective. If a mailbox doesn't have a specific sharing policy assigned, a default policy enforces the level of sharing permitted for this mailbox.

For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax.

New-SharingPolicy -Domains <MultiValuedProperty> -Name <String> [-Confirm [<SwitchParameter>]] [-Default <SwitchParameter>] [-DomainController <Fqdn>] [-Enabled <$true | $false>] [-WhatIf [<SwitchParameter>]]

This example creates the sharing policy Contoso for the domain, which is a domain outside the organization. This policy allows users in the domain to see detailed free/busy information and contacts. By default, this policy is enabled.

New-SharingPolicy -Name "Contoso" -Domains ' CalendarSharingFreeBusyDetail, ContactsSharing'

This example creates a default sharing policy, which is applied to all mailboxes that don't implicitly have a sharing policy assigned to them. This sharing policy SharingPolicy01 applies to two different domains, and the sharing policy is disabled.

New-SharingPolicy -Name "SharingPolicy01" -Domains ' CalendarSharingFreeBusySimple', ' CalendarSharingFreeBusySimple' -Enabled $false -Default $true

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you. To see what permissions you need, see the "Sharing policies" entry in the Recipients Permissions topic.


Parameter Required Type Description




The Domains parameter specifies the domains to which this sharing policy applies and the sharing policy actions. Values for this parameter take the format: 'Domain: SharingPolicyAction'.

The following sharing policy action values can be used:

  • CalendarSharingFreeBusySimple   Share free/busy hours only

  • CalendarSharingFreeBusyDetail   Share free/busy hours, subject, and location

  • CalendarSharingFreeBusyReviewer   Share free/busy hours, subject, location, and the body of the message or calendar item

  • ContactsSharing   Share contacts only

Separate multiple domains with a comma, for example, ' CalendarSharingFreeBusySimple', ' CalendarSharingFreeBusyDetail, ContactsSharing'.

A domain doesn't include subdomains. You must configure each subdomain separately.




The Name parameter specifies the name of the new sharing policy.




The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on if the cmdlet requires confirmation before proceeding.

  • Destructive cmdlets (for example, Remove-* cmdlets) have a built-in pause that forces you to acknowledge the command before proceeding. For these cmdlets, you can skip the confirmation prompt by using this exact syntax: -Confirm:$false.

  • Most other cmdlets (for example, New-* and Set-* cmdlets) don't have a built-in pause. For these cmdlets, specifying the Confirm switch without a value introduces a pause that forces you acknowledge the command before proceeding.




The Default switch specifies that this sharing policy is the default sharing policy for all mailboxes. If no sharing policy has been applied to a mailbox, the default policy is automatically applied. If you want to disable sharing across your organization, you can set the default policy as disabled.

You don't have to specify a value with this switch.




This parameter is available only in on-premises Exchange 2016.

The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name (FQDN). For example,




The Enabled parameter specifies whether to enable the new sharing policy. Valid input for this parameter is $true or $false. The default is $true.

When the sharing policy is disabled, users who are provisioned to use this policy continue to share information until the sharing policy assistant runs and removes the permissions on the shared folder. The frequency with which the sharing policy assistant runs is assigned in the Set-MailboxServer cmdlet using the SharingPolicySchedule parameter.




The WhatIf switch simulates the actions of the command. You can use this switch to view the changes that would occur without actually applying those changes. You don't need to specify a value with this switch.




This parameter is reserved for internal Microsoft use.

To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn’t accept input data.

To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn’t return data.