Set-OwaMailboxPolicy

The Identity parameter specifies the mailbox policy that you want to modify. You can use any value that uniquely identifies the policy. For example:

• Name

• Distinguished name (DN)

• GUID

The ActionForUnknownFileAndMIMETypes parameter specifies how to handle files that aren't included in other File Access Management lists. Valid values are:

• Allow

• ForceSave

• Block

The ActiveSyncIntegrationEnabled parameter specifies whether to disable Exchange ActiveSync on the Options page in Outlook on the web.

The AllAddressListsEnabled parameter specifies which address lists are available to the user. Valid values are:

• $true: Users can view all address lists.

• $false: Users can view only the global address list.

The AllowCopyContactsToDeviceAddressBook parameter specifies if users can copy the contents of their Contacts folder to a mobile device's native address book when using Outlook on the web for devices.

The AllowOfflineOn parameter specifies which computers can use Outlook on the web in offline mode. The possible values are PrivateComputersOnly, NoComputers, or AllComputers. The value is set to AllComputers by default. If you set the value to PrivateComputersOnly, only users who log into Outlook on the web using the Private option are able to use Outlook on the web in offline mode.

If the feature is enabled, and if users are using a supported browser, they can use Outlook on the web in offline mode. Users can turn the feature on or off in Outlook on the web. To turn the feature on, users click the gear icon, and then select Stop using offline. To turn the feature off, users click the gear icon, and then select Use mail offline.For more information about the supported browsers for this feature, see Using Outlook Web App offline (https://go.microsoft.com/fwlink/p/?linkid=267644).

The AllowedFileTypes parameter specifies the extensions of file types that the user can save locally and view from a web browser. If the same extensions are in multiple settings lists, the most secure setting overrides the less secure settings.

The AllowedMimeTypes parameter creates extensions of MIME attachments that users can save locally and view from a web browser. If the same extensions are in multiple settings lists, the most secure setting overrides the less secure settings.

The BlockedFileTypes parameter specifies a list of extensions of attachments that are blocked. Attachments that contain these blocked extensions can't be saved locally or viewed from a web browser.

The BlockedMimeTypes parameter specifies a list of MIME extensions of attachments that are blocked. Attachments that contain these blocked MIME extensions can't be saved locally or viewed from a web browser.

This parameter is available only in the cloud-based service.

This parameter has been deprecated and is no longer used.

To enable or disable Box attachments in Outlook on the web, use the ThirdPartyAttachmentsEnabled parameter.

The CalendarEnabled parameter specifies whether to enable or disable the calendar for users.

This parameter is available only in on-premises Exchange.

The ChangePasswordEnabled parameter specifies whether users can change their passwords from inside Outlook on the web.

The ClassicAttachmentsEnabled parameter specifies whether users can attach local files as regular email attachments. Valid values are:

• $true: Users can attach local files to email messages. This is the default value.

• $false: Users can't attach local files to email messages.

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 ContactsEnabled parameter specifies whether Contacts are enabled for users.

This parameter is available or functional only in Exchange Server 2010.

This parameter is available or functional only in Exchange Server 2010.

The DefaultClientLanguage parameter isn't available in this release.

The DefaultTheme parameter specifies the default theme used by Outlook on the web when the user hasn't selected a theme.

This parameter is available or functional only in Exchange Server 2010.

The DelegateAccessEnabled parameter specifies whether delegates can use Outlook Web App to open folders they have delegate access to through this virtual directory.

The DirectFileAccessOnPrivateComputersEnabled parameter specifies the left-click options on attachments when the user has chosen to log on using the Private option. If this parameter is set to $true, Open is an available option. If it's set to $false, the Open option is disabled.

The DirectFileAccessOnPublicComputersEnabled parameter specifies the left-click options on attachments when the user has chosen to log on using the Public option. If this parameter is set to $true, Open is an available option. If it's set to $false, the Open option is disabled.

This parameter is available only in the cloud-based service.

The DisableFacebook switch disables Facebook integration with Outlook on the web.

The DisplayPhotosEnabled parameter specifies whether users see sender photos in Outlook on the web. Valid values are:

• $true: Users see sender photos in Outlook on the web. This is the default value.

• $false: Users don't see sender photos in Outlook on the web.

This parameter is available only in on-premises Exchange.

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, dc01.contoso.com.

This parameter is available only in the cloud-based service.

This parameter has been deprecated and is no longer used.

To enable or disable Dropbox attachments in Outlook on the web, use the ThirdPartyAttachmentsEnabled parameter.

The ExplicitLogonEnabled parameter specifies whether to allow a user to open someone else's mailbox in Outlook on the web. If this parameter is set to $true, it allows a user to open someone else's mailbox in Outlook on the web.

The ExternalSPMySiteHostURL specifies the My Site Host URL for external users (for example, https://sp01.contoso.com).

This parameter is part of rich document collaboration that allows links to documents in OneDrive for Business to appear as regular file attachments in messages.

The FacebookEnabled parameter specifies whether users can synchronize their Facebook contacts to their Contacts folder. The possible values for this parameter are $true or $false. The default value is $true.

The ForceSaveAttachmentFilteringEnabled parameter specifies whether files which are included in the list of extensions created by the ForceSaveFileTypes parameter are filtered before the user can save them.

The ForceSaveFileTypes parameter creates a list of extensions of attachments that can be opened only after the file is saved locally on the user's computer.

The ForceSaveMimeTypes parameter specifies the MIME types of attachments that can be opened only after the file is saved locally on the user's computer.

The ForceWacViewingFirstOnPrivateComputers parameter specifies whether a user who has logged on using the Private option can open an Office file directly without first viewing it as a web page.

The ForceWacViewingFirstOnPublicComputers parameter specifies whether a user who has logged on using the Public option can open an Office file directly without first viewing it as a web page.

The ForceWebReadyDocumentViewingFirstOnPrivateComputers parameter specifies whether a user who has logged on using the Private option can open a document directly without first viewing it as a web page.

The ForceWebReadyDocumentViewingFirstOnPublicComputers parameter specifies whether a user who has logged on using the Public option can open a document directly without first viewing it as a web page.

This parameter is available only in the cloud-based service.

The FreCardsEnabled parameter specifies whether to enable or disable the theme, signature, and phone cards in Outlook on the web. Valid values are:

• $true: The theme, signature, and phone cards are visible in Outlook on the web. This is the default value.

• $false: The theme, signature, and phone cards aren't visible in Outlook on the web. Only the introduction, time zone, and final cards are visible.

The GlobalAddressListEnabled parameter specifies whether to show the global address list in Outlook on the web.

This parameter is available only in the cloud-based service.

This parameter has been deprecated and is no longer used.

To enable or disable Google Drive attachments in Outlook on the web, use the ThirdPartyAttachmentsEnabled parameter.

The GroupCreationEnabled parameter specifies whether to allow users to create Office 365 groups in Outlook on the web. Valid values are:

• $true: Users can create Office 365 groups in Outlook on the web. This is the default value.

• $false: Users can't create Office 365 groups in Outlook on the web.

The IRMEnabled parameter specifies whether the Information Rights Management (IRM) feature is enabled.

The InstantMessagingEnabled parameter specifies whether to enable instant messaging in Outlook on the web.

The InstantMessagingType parameter specifies the type of instant messaging provider to be used. Set this parameter to None for no provider and Ocs for Microsoft Office Communication Server. The Msn value is no longer used and will be deprecated.

This parameter is available only in the cloud-based service.

The InterestingCalendarsEnabled parameter specifies whether to enable interesting calendars in Outlook on the web. Valid values are:

• $true: Interesting calendars are enabled. This is the default value.

• $false: Interesting calendars are disabled.

The InternalSPMySiteHostURL specifies the My Site Host URL for internal users (for example, https://sp01.contoso.com).

This parameter is part of rich document collaboration that allows links to documents in OneDrive for Business to appear as regular file attachments in messages.

The IsDefault parameter specifies whether this policy is the default policy. The default value is $false. If another policy is currently set as the default, setting this parameter replaces the old default policy with this policy.

The JournalEnabled parameter specifies whether the Journal folder is visible.

This parameter is available only in on-premises Exchange.

The JunkEmailEnabled parameter specifies whether the Junk Email management tools are enabled.

This parameter is available only in the cloud-based service.

The LinkedInEnabled parameter specifies whether users can synchronize their LinkedIn contacts to their Contacts folder. The possible values for this parameter are $true or $false. The default value is $true.

This parameter is available only in the cloud-based service.

The LocalEventsEnabled parameter specifies whether to enable local events calendars in Outlook on the web. Valid values are:

• $true: Local events are enabled.

• $false: Local events are disabled. This is the default value.

The LogonAndErrorLanguage parameter specifies which language Outlook on the web uses for forms-based authentication and for error messages that occur when a user's current language setting can't be read. When this parameter has a value of 0, the language selection is undefined.

The Name parameter specifies the unique name for the policy. The maximum length is 64 characters. If the value contains spaces, enclose the value in quotation marks.

The NotesEnabled parameter specifies whether the Notes folder is visible in Outlook on the web.

The OWALightEnabled parameter, when set to $false, removes the option to use the light version of Outlook on the web from the logon page and removes the Accessibility check box from the General Options tab. This parameter doesn't apply to Outlook on the web.

This parameter is available or functional only in Exchange Server 2010.

This parameter controls whether the mini version of Outlook Web App is enabled.

This parameter is available only in the cloud-based service.

The OnSendAddinsEnabled parameter specifies whether to enable or disable on send add-ins in Outlook on the web (add-ins that support events when a user clicks Send). Valid values are:

• $true: On send add-ins are enabled.

• $false: On send add-ins are disabled. This is the default value.

The OneDriveAttachmentsEnabled parameter specifies whether to allow OneDrive attachments in Outlook on the web. Valid values are:

• $true: OneDrive attachments are enabled. This is the default value.

• $false: OneDrive attachments are disabled.

When the OrganizationEnabled parameter is set to $false, the Automatic Reply option doesn't include external and internal options, the address book doesn't show the organization hierarchy, and the Resources tab in Calendar forms is disabled.

The OutboundCharset parameter specifies the character set that's used for outgoing messages in Outlook on the web. Valid values are:

• AutoDetect: Examine the first 2 kilobytes (KB) of text in the message to determine the character set that's used in outgoing messages. This is the default value.

• AlwaysUTF8: Always use UTF-8 encoded UNICODE characters in outgoing messages, regardless of the detected text in the message, or the user's language choice in Outlook on the web. Use this value if replies to UTF-8 encoded messages aren't being encoded in UTF-8.

• UserLanguageChoice: Use the user's language choice in Outlook on the web to encode outgoing messages.

This parameter is available only in the cloud-based service.

The OutlookBetaToggleEnabled parameter specifies whether to enable or disable the Outlook on the web Preview toggle. The Preview toggle allows users to try the new Outlook on the Web experience. Valid values are:

• $true: The Outlook on the web Preview toggle is enabled. Users can easily switch back and forth between both experiences. This is the default value.

• $false: Outlook on the web Preview is disabled.

The PhoneticSupportEnabled parameter specifies phonetically spelled entries in the address book. This parameter is available for use in Japan.

This parameter is available only in the cloud-based service.

The PlacesEnabled parameter specifies whether to enable or disable Places in Outlook on the web. Places lets users search, share and map location details by using Bing. Valid values are:

• $true: Places is enabled. This is the default value.

• $false: Places is disabled.

This parameter is available or functional only in Exchange Server 2010.

The PremiumClientEnabled parameter specifies whether a user can access Outlook Web App. This parameter doesn't apply to the light version of Outlook Web App.

This parameter is available or functional only in Exchange Server 2010.

The PublicFoldersEnabled parameter specifies whether a user can browse or read items in public folders using Outlook Web App.

By default, the PublicFoldersEnabled parameter is set to $true. If the PublicFoldersEnabled parameter is set to $false, users can only access their private mailboxes in Outlook Web App.

This parameter is available or functional only in Exchange Server 2010.

The RecoverDeletedItemsEnabled parameter specifies whether a user can use Outlook Web App to view, recover, or delete permanently items that have been deleted from the Deleted Items folder. By default, the RecoverDeletedItemsEnabled parameter is set to $true. If the RecoverDeletedItemsEnabled parameter is set to $false, the items deleted from the Deleted Items folder are retained. However, users can't view, recover, or permanently delete them using Outlook Web App.

The ReferenceAttachmentsEnabled parameter specifies whether users can attach files from the cloud as linked attachments. Valid values are:

• $true: Users can attach files that are stored in the cloud as linked attachments. If the file hasn't been uploaded to the cloud yet, the users can attach and upload the file in the same step. This is the default value.

• $false: Users can't share files in the cloud as linked attachments. They need to download a local copy of the file before attaching the file to the email message.

The RemindersAndNotificationsEnabled parameter specifies whether notifications and reminders are enabled in Outlook on the web. This parameter doesn't apply to the light version of Outlook on the web.

The ReportJunkEmailEnabled parameter specifies whether users can report messages to Microsoft or unsubscribe from messages in Outlook on the web. Valid values are:

• $true: The Report junk, Report phishing or Report not junk options are available after the user selects Mark as junk, Mark as phishing, or Mark as not junk. The Unsubscribe option is also available. This is the default value.

• $false: The Report junk, Report phishing, Report not junk and Unsubscribe options aren't available.

This parameter is meaningful only when the JunkEmailEnabled parameter is set to $true.

The RulesEnabled parameter specifies whether a user can view, create, or modify server-side rules using Outlook on the web. By default, the RulesEnabled parameter is set to $true. If the RulesEnabled parameter is set to $false, users must use Outlook to view, create, and modify server-side rules.

This parameter is available or functional only in Exchange Server 2010.

The SMimeEnabled parameter specifies whether users can download the S/MIME control for Outlook Web App and use it to read and compose signed and encrypted messages. By default, the SMimeEnabled parameter is set to $true. If the SMimeEnabled parameter is set to $false, users are unable to read or compose messages that are opaque-signed or encrypted. Messages that are clear-signed can be read but not composed, and their signatures aren't validated.

Note: In Exchange 2013 or later, use the Get-SmimeConfig and Set-SmimeConfig cmdlets to configure the S/MIME settings in Outlook on the web. For more information, see S/MIME for message signing and encryption (https://technet.microsoft.com/library/dn626158.aspx).

The SatisfactionEnabled parameter specifies whether to enable or disable the satisfaction survey. Valid values are:

• $true: The satisfaction survey is enabled. This is the default value.

• $false: The satisfaction survey is disabled.

The SaveAttachmentsToCloudEnabled parameter specifies whether users can save regular email attachments to the cloud. Valid values are:

• $true: Users can save regular email attachments to the cloud. This is the default value.

• $false: Users can only save regular email attachments locally.

The SearchFoldersEnabled parameter specifies whether Search Folders are available in Outlook on the web.

The SetPhotoEnabled parameter specifies whether users can add, change, and remove their sender photo in Outlook on the web. The possible values for this parameter are $true or $false. The default value is $false. When this value is set to $true, users can manage their sender photo using two methods. They can click their name in the upper-right corner of Outlook on the web, click Change, and then browse to the photo they want to use. Alternatively, users can manage their photo by clicking the gear icon in the upper-right corner of Outlook on the web, and then clicking Options > Account > My account > Edit > Change.

The SetPhotoURL parameter specifies the location of the user photos. This value isn't set by default.

The SignaturesEnabled parameter specifies whether to enable or disable the use of signatures in Outlook on the web.

This parameter is available or functional only in Exchange Server 2010.

The SilverlightEnabled parameter specifies whether a user can use Microsoft Silverlight features in Outlook Web App.

The SkipCreateUnifiedGroupCustomSharepointClassification parameter causes the custom Sharepoint page during unified group creation to be skipped.

This parameter is available or functional only in Exchange Server 2010.

The SpellCheckerEnabled parameter specifies whether a user can check spelling in Outlook Web App. This parameter doesn't apply to the light version of Outlook Web App.

The TasksEnabled parameter specifies whether a user can use the Tasks feature in Outlook on the web. This parameter doesn't apply to the light version of Outlook on the web.

The TextMessagingEnabled parameter specifies whether users can send and receive text messages. This parameter doesn't apply to the light version of Outlook on the web.

The ThemeSelectionEnabled parameter specifies whether users can select a theme in Outlook on the web.

This parameter is available only in the cloud-based service.

The ThirdPartyAttachmentsEnabled parameter specifies whether to allow third-party (for example, Box, Dropbox, and Google Drive) attachments in Outlook on the web. Valid values are:

• $true: Third-party attachments are enabled. Users can connect their third-party file sharing accounts and share files over email.

• $false: Third-party attachments are disabled. Users can't connect their third-party file sharing accounts or share files over email. This is the default value.

The UMIntegrationEnabled parameter specifies whether Unified Messaging is enabled in Outlook on the web. This setting applies only if Unified Messaging has been enabled for a user using the Enable-UMMailbox cmdlet. This parameter doesn't apply to the light version of Outlook on the web.

The UseGB18030 parameter specifies when to use the character set GB18030. This parameter is a character-handling registry key that works in coordination with the OutboundCharset registry key. When the UseGB18030 parameter is set to $true, the character set GB18030 is used wherever GB2312 would have been used.

The UseISO885915 parameter specifies when to use the character set ISO8859-15. This parameter is a character-handling registry key that works in coordination with the OutboundCharset registry key. When the UseISO885915 parameter is set to $true, the character set ISO8859-15 is used wherever ISO8859-1 would have been used.

This parameter is available only in the cloud-based service.

The UserVoiceEnabled parameter specifies whether to enable or disable Outlook UserVoice in Outlook on the web. Outlook UserVoice is a customer feedback area that's available in Office 365. Valid values are:

• $true: Outlook UserVoice is enabled. This is the default value.

• $false: Outlook UserVoice is disabled.

This parameter is available or functional only in Exchange Server 2010.

The WSSAccessOnPrivateComputersEnabled parameter isn't available in this release.

This parameter is available or functional only in Exchange Server 2010.

The WSSAccessOnPublicComputersEnabled parameter isn't available in this release.

The WacEditingEnabled parameter specifies whether to enable or disable editing documents in Outlook on the web by using Office Online Server (formerly known as Office Web Apps Server and Web Access Companion Server). Valid values are:

• $true: Users can edit supported documents in Outlook on the web. This is the default value.

• $false: Users can't edit supported documents in Outlook on the web

The WacExternalServicesEnabled parameter specifies whether to enable or disable external services when viewing documents in Outlook on the web (for example, machine translation). Valid values are:

• $true: External services are enabled when viewing supported documents in Outlook on the web. This is the default value.

• $false: External services are disabled when viewing supported documents in Outlook on the web.

The WacOMEXEnabled parameter specifies whether to enable or disable apps for Outlook. Valid values are:

• $true: apps for Outlook are enabled.

• $false: apps for Outlook are disabled. This is the default value.

The WacViewingOnPrivateComputersEnabled parameter specifies whether to enable or disable web viewing of supported Office documents in private computer sessions. By default, all Outlook on the web sessions are considered to be on private computers. Valid values are:

• $true: In private computer sessions, users can view supported Office documents in the web browser. This is the default value.

• $false: In private computer sessions, users can't view supported Office documents in the web browser. Users can still open the file in a supported application, or save the file locally.

The WacViewingOnPublicComputersEnabled parameter specifies whether to enable or disable web viewing of supported Office documents in public computer sessions. Valid values are:

• $true: In public computer sessions, users can view supported Office documents in the web browser. This is the default value.

• $false: In public computer sessions, users can't view supported Office documents in the web browser. Users can still open the file in a supported application, or save the file locally.

By default, this setting is meaningless, because all Outlook on the web sessions are considered to be on private computers. In on-premises Exchange, the only way that users can specify public computer sessions is if you've enabled the selection on the sign in page (the LogonPagePublicPrivateSelectionEnabled parameter value is $true on the Set-OwaVirtualDirectory cmdlet).

This parameter is available only in the cloud-based service.

The WeatherEnabled parameter specifies whether to enable or disable weather information in the calendar in Outlook on the web. Valid values are:

• $true: Weather is enabled. This is the default value.

• $false: Weather is disabled. This is the default value.

The WebPartsFrameOptionsType parameter specifies what sources can access Outlook on the web web parts in IFRAME or FRAME elements.

Valid values are:

• None: This indicates that there are no restrictions on displaying Outlook on the web content in a frame.

• SameOrigin: This is the default value and the recommended value. This allows display of Outlook on the web content only in a frame that has the same origin as the content.

• Deny: This blocks display of Outlook on the web content in a frame regardless of the origin of the site attempting to access it.

• AllowFrom: This isn't yet available. It will be implemented in a later release.

The WebReadyDocumentViewingForAllSupportedTypes parameter enables WebReady Document Viewing for all supported file and MIME types. If this parameter is set to $false, use the WebReadyFileTypes and WebReadyMimeTypes parameters to set which file and MIME types to convert.

The WebReadyDocumentViewingOnPrivateComputersEnabled parameter specifies whether WebReady Document Viewing is enabled when the user selects the This is a private computer option on the Outlook Web App logon page.

The WebReadyDocumentViewingOnPublicComputersEnabled parameter specifies whether WebReady Document Viewing is enabled when the user selects the This is a public or shared computer option on the Outlook Web App logon page.

The read-only WebReadyDocumentViewingSupportedFileTypes parameter lists the file types supported by the conversion engine.

The read-only WebReadyDocumentViewingSupportedMimeTypes parameter lists the MIME types supported by the conversion engine

The WebReadyFileTypes parameter creates a list of file types on which WebReady Document Viewing is performed.

The WebReadyMimeTypes parameter creates a list of MIME types on which WebReady Document Viewing is performed.

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.