![]() ![]() ![]() OAuth 2.0: A standard protocol that allows users to authenticate without having to enter their credentials each time.LDAP and Kerberos are both well-established protocols that can be used for authentication, and NTLM is also an option if you're using Microsoft products exclusively. OAuth is a popular choice for authentication and authorization, and SAML is another option for those who require single sign-on capabilities. There are a number of alternatives to Basic Auth. But, to recap, let’s take a look at some alternatives and how the deprecation is going to affect you if you are one of our clients. In the past few months, we’ve contacted our client’s technical teams to help with this transition. Its access tokens have a limited functioning lifespan and are restricted to the applications and resources for which they are given, so they cannot be reused. ![]() If you're still on Basic Auth, the company recommends switching to Modern Authentication (OAuth 2), which uses token-based authorization. The deadline for its replacement is approaching quickly, and many users are still using it despite reminders from Microsoft. They will also disable SMTP AUTH in any tenant that is not using it. Microsoft is discontinuing the use of basic authentication in Exchange Online for various applications, including but not limited to: EAS, POP, IMAP, Remote PowerShell, Exchange Web Services (EWS), Offline Address Book (OAB), Outlook for Windows and Mac. Yes, it’s happening, and this is what Microsoft reported: That's when Microsoft is going to start disabling Basic Auth for protocols in Exchange Online that have yet to be turned off. If you're still using Microsoft’s Basic Authentication (Basic Auth), you're in for a rude awakening on October 1.
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