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Office 365 Commercial customers can get the new Outlook for Mac by accessing their Office 365 Portal, (Gear icon Office 365 Settings Software Outlook for Mac icon) or visiting the Software page; Office 365 consumer subscribers can get the new Outlook for Mac by going to their My Account page. Tips: You can also move a message to your Junk E-mail folder or block a sender from your Inbox: To classify a message as junk and move it to your Junk E-mail folder, Ctrl+click or right-click a message header and then click Junk Mail Mark as Junk. To classify a message as junk and block the sender, Ctrl+click or right-click a message header and then click Junk Mail Block Sender. Outlook 2016 for Mac, the latest iteration of the email and calendaring app, is a worthwhile upgrade for existing users. But if you don't already use Outlook, the new edition probably won't offer.
-->Applies to:Outlook for Mac, Outlook 2019 for Mac
As an IT admin, you may want to provide Outlook for Mac users in your organization with a standard set of preferences in either of the following ways:
- Set a default preference, which users can change.
- Force a particular preference, which users can’t change.
The following preferences can be used to simplify account setup for Office 365 mailboxes, help protect company data, and support a streamlined user experience.
These keys are CFPreferences-compatible, which means that it can be set by using enterprise management software for Mac, such as Jamf Pro.
The following list shows the preferences that are covered in this article:
Mailbox settings
Automatically configure Office 365 mailbox on first launch
The email address used for Office activation will be added on first launch.
| Domain | com.microsoft.office |
| Key | OfficeAutoSignIn |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.17 |
| Comments | This key also suppresses first run dialogs for other Office apps, including Word, Excel, PowerPoint, and OneNote. |
Specify Office 365 mailbox to be added on first launch
Set the domain or full email address of Office 365 mailbox to be added on first launch.
| Domain | com.microsoft.Outlook |
| Key | DefaultEmailAddressOrDomain |
| Data Type | String |
| Possible values | various (example: 'contoso.com') |
| Availability | 16.18 |
| Comments | The full email address or domain specified will be added in Outlook instead of the Office activation email address. |
Allow only corporate mailboxes to be added
Specify one or more domains users are allowed to add in Outlook.
| Domain | com.microsoft.Outlook |
| Key | AllowedEmailDomains |
| Data Type | Array of Strings |
| Possible values | Various (example: 'contoso.com$') |
| Availability | 16.18 |
| Comments | Format strings as regular expressions. Doesn't remove or disconnect accounts already added in Outlook. |
Hide text about adding non-corporate mailboxes
Hide the “Did you know? Outlook supports…” text in the Set Up Your Email success dialog box.
| Domain | com.microsoft.Outlook |
| Key | HideCanAddOtherAccountTypesTipText |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.18 |
| Comments | Only hides text. Doesn't impact ability to add non-corporate mailboxes. |
Import/export settings
Disable import
Prevent users from being able to import archive files (.olm and .pst) and Outlook 2011 for Mac data.
| Domain | com.microsoft.Outlook |
| Key | DisableImport |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.18 |
| Comments | Key must be set to true and forced. |
Disable export
Prevent users from being able to export archive files (.olm).
| Domain | com.microsoft.Outlook |
| Key | DisableExport |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.18 |
| Comments | Key must be set to true and forced. |
Online meetings settings
Disable Skype for Business online meetings
Prevent users from adding Skype for Business online meeting details to events.
| Domain | com.microsoft.Outlook |
| Key | DisableSkypeMeeting |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.19 |
| Comments | Key must be set to true and forced. |
Disable Teams online meetings
Prevent users from adding Teams online meeting details to events.
| Domain | com.microsoft.Outlook |
| Key | DisableTeamsMeeting |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.20 |
| Comments | Key must be set to true and forced. |
Weather location settings
Specify default weather location
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Set default location for weather in calendar view.
| Domain | com.microsoft.Outlook |
| Key | DefaultWeatherLocation |
| Data Type | String |
| Possible values | Various (example: “Paris, France”) |
| Availability | 16.18 |
| Comments | Use the format returned by the weather location search within Outlook. |
Disable automatic updating of weather location
Prevent users from choosing Update Location Automatically for weather location.
| Domain | com.microsoft.Outlook |
| Key | Weather_update_automatically |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.19 |
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Other settings
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Hide local folders
Prevent users from viewing local On My Computer folders in the sidebar.
| Domain | com.microsoft.Outlook |
| Key | HideFoldersOnMyComputerRootInFolderList |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.17 |
| Comments | Found under Outlook > Preferences > General > Sidebar. |
Specify when pictures are downloaded for email
Set when pictures are automatically downloaded from the internet for email.
| Domain | com.microsoft.Outlook |
| Key | AutomaticallyDownloadExternalContent |
| Data Type | Integer |
| Possible values | 0 = Never (default) 1 = In messages from my contacts 2 = In all messages |
| Availability | 16.17 |
| Comments | Found under Outlook > Preferences > Email > Reading > Security. |
Disable signatures
Prevent users from being able to create, edit, and add client-side signatures.
| Domain | com.microsoft.Outlook |
| Key | DisableSignatures |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.18 |
| Comments | Key must be set to true and forced. |
Specify calendar first day of week
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Set the first day of week in calendar view.
| Domain | com.microsoft.Outlook |
| Key | CalendarFirstDayOfWeek |
| Data Type | Integer |
| Possible values | 1 = Sunday (default) 2 = Monday 3 = Tuesday 4 = Wednesday 5 = Thursday 6 = Friday 7 = Saturday |
| Availability | 16.19 |
Enable new Outlook
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Set the availability and default position of the New Outlook switch.
| Domain | com.microsoft.Outlook |
| Key | EnableNewOutlook |
| Data Type | Integer |
| Possible values | 0 = Switch hidden (default) 1 = Switch displayed, default off 2 = Switch displayed, default on 3 = New Outlook enabled with switch hidden |
| Availability | 16.38 |
Disable 'Encrypt-Only'
Prevent users from applying the Encrypt-Only option to emails when using Microsoft 365 Message Encryption.
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| Domain | com.microsoft.Outlook |
| Key | DisableEncryptOnly |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.40 |
| Comments | Only applies to the new Outlook. |
Disable 'Do Not Forward'
Prevent users from applying the Do Not Forward option to emails when using Microsoft 365 Message Encryption.
| Domain | com.microsoft.Outlook |
| Key | DisableDoNotForward |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.40 |
| Comments | Only applies to the new Outlook. |
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