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OUTLOOK FOR MAC AUTHENTICATION REQUIRED FOR MAC OSX
OUTLOOK FOR MAC AUTHENTICATION REQUIRED UPDATE
OUTLOOK FOR MAC AUTHENTICATION REQUIRED FULL
OUTLOOK FOR MAC AUTHENTICATION REQUIRED PASSWORD

From the Left-Hand menu, select ‘ Users > Active Users’.

Sign into your Microsoft 365 Admin Center at.

You must use an admin account with the Global Administrator role to change these settings.

With the Premium licences, you can apply this based on other criteria, such as location or device policies, which is not covered below, but can be found on the Microsoft Docs portal. You can apply MFA on a per-user basis with the standard licensing, which the below steps cover. You can access this through the Microsoft 365 Admin Center. The accounts you use with Office 365 are managed through the Azure Active Directory service, which is where Multi-Factor Authentication must be applied. The details and steps for these can be found later in the guide.

OUTLOOK FOR MAC AUTHENTICATION REQUIRED PASSWORD

If the application you are using is not a supported application, you will likely need to use an App Password to connect.

OUTLOOK FOR MAC AUTHENTICATION REQUIRED FULL

The full list of supported applications can be found on the Microsoft Docs portal. Outlook 2013 requires a registry key to be applied. *Modern Authentication must be enabled in your Office 365 tenant.

OUTLOOK FOR MAC AUTHENTICATION REQUIRED FOR MAC OSX

Mail for Mac OSX 10.14 (Mojave) and later.In order to honour Multi-Factor Authentication requests, you must ensure an application that utilises Microsoft’s Modern Authentication platform. In this scenario, if uses OKTA server for authentication, the OKTA service will still receive authentication requests for non-existent usernames from Exchange Online during a password spray attack.If you have Office 365 licences, you already have Multi-Factor Authentication (MFA) available for your Office 365 users.Īdditional options for MFA are available through the Azure Active Directory Premium Plan 1 licence, including the ability to whitelist based on factors such as locations and the application being accessed. Authentication is done as per OKTA policies and a SAML token is issued to the user for SSO into O365.An email client sends a login request to Exchange Online with the username An authentication policy can't be applied to the user, and the authentication request for is sent to the on-premises AD FS.The user exists in the OKTA, but not in Office 365 (there's no user account in Azure Active Directory and no recipient object in the Exchange Online global address list).Your organization used OKTA for user authentication and SSO to O365.For example, consider the following scenario:

For federated authentication, if a user doesn't exist in Exchange Online, the username and password are forwarded to the on-premises IdP/other cloud IDPs like OKTA. The policies are effective for only those users which are actually stored in Exchange. The benefit of this approach is brute force or password spray attacks won't reach the IdP (which might trigger account lock-outs due to incorrect login attempts). When it's blocked, Basic authentication in Exchange Online is blocked at the first pre-authentication before the request reaches Azure Active Directory or the on-premises IdP. A policy for a specific user and specific protocol can be set to disable the basic authentication for the given user and protocol. The policies define the client protocols authentication policies and assigning them to end users.

Check you have successfully disabled the old authentication mechanismsīasic authentication in Exchange Online can be blocked by creating users.

Create appropriate authentication policies.

OUTLOOK FOR MAC AUTHENTICATION REQUIRED UPDATE

Update the emails clients to below or higher versions.

You can do this by proactively disabling the basic and legacy authentication from Exchange Online and ensure that all your clients are using the modern authentication. You must ensure that you stop using basic and legacy authentication before the retirement date to avoid service disruption for your users.

Outlook 2013 or later (Outlook 2013 requires a registry key change )īasic authentication is also known as proxy authentication because the email client transmits the username and password to Exchange Online, and Exchange Online forwards or proxies the credentials to an authoritative identity provider (IdP) on behalf of the email client or app.

This will be replaced by Modern authentication which is supported by the following clients It does not affect the SMTP based access for now. It affects Exchange ActiveSync (EAS), IMAP, POP, and Remote PowerShell and few other protocols. Once retired all the client devices using basic authentication will not be able to authenticate and will stop getting data from the servers.

Microsoft is removing basic authentication on 13th October 2020 from Exchange online.