Apple Mail, also known simply as the Mail app, is the default email client on macOS. Oct 24, 2020 You may also try to create a new Outlook profile, set it to default, restart Outlook and add your account again to see if result is the same: Manage profiles or identities in Outlook for Mac (please do not remove the old profile during test to avoid data loss). Best Regards, Anna.
-->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.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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).
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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.
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| Category | Details |
|---|---|
| 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. |
Security settings
Disable 'Encrypt-Only'
Prevent users from applying the Encrypt-Only option to emails when using Microsoft 365 Message Encryption.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| Domain | com.microsoft.Outlook |
| Key | DisableDoNotForward |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.40 |
| Comments | Only applies to the new Outlook. |
Allow S/MIME certificates without a matching email address
Allow users to decrypt and encrypt S/MIME messages when the S/MIME certificate does not match the email address.
| Category | Details |
|---|---|
| Domain | com.microsoft.Outlook |
| Key | AllowCertsWithoutMatchingEmailAddress |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.45 |
| Comments | Only applies to the new Outlook. |
Set the order in which S/MIME certificates are considered
Set the order in which certificates will be used to decrypt and encrypt S/MIME messages.
| Category | Details |
|---|---|
| Domain | com.microsoft.Outlook |
| Key | SMIMECertificatesLookupOrder |
| Data Type | Array of unsigned integer |
| Possible values | 0 (Contacts), 1 (GAL), 2 (Device), 3 (LDAP) Default is [0, 1, 2, 3] |
| Availability | 16.45 |
| Comments | Only applies to the new Outlook. |
Weather location settings
Specify default weather location
Set default location for weather in calendar view.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| Domain | com.microsoft.Outlook |
| Key | Weather_update_automatically |
| Data Type | Boolean |
| Possible values | false (default) true |
| Availability | 16.19 |
Other settings
Hide local folders
Prevent users from viewing local On My Computer folders in the sidebar.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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
Webex teams mobile screen share. Prevent users from being able to create, edit, and add client-side signatures.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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.
| Category | Details |
|---|---|
| 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 |
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