Therefore, instructing organizations to never mention that they aren’t ready for this change! What Are the Consequences of Basic Authentication Deprecation? Microsoft will begin to disable basic authentication for Exchange Online on October 1, 2022. Therefore, Microsoft brought in the idea to deprecate basic authentication.ĭue to the pandemic, Microsoft started to postpone the deprecation. But it’s not over yet! Despite Microsoft continuously warning about the deprecation, many organizations are not ready to make the switch to Modern authentication. To those, the deadline is here!
Hackers will easily attack accounts that use basic auth as it requires only a username and a password to log in. Since it is one of the oldest authentication methods, it comes with numerous security flaws.
Click the Advanced tab, and change the Outgoing server (SMTP) port.Over the past few years, Microsoft has warned admins about the basic authentication deprecation in Exchange Online. Click the Outgoing Server tab, then check the My outgoing server (SMTP) requires authentication option. On the Change E-mail Settings window, click More Settings. Select your email account from the list, then click Change. From the Tools menu, choose Account Settings. Click Close to complete the configuration. Click on the Settings button, and ensure Use the same setting as my incoming mail server is selected. Under Outgoing Mail Server, check the box next to My server requires authentication. Select your email address from the list of accounts, then click the Properties button. Verify the Authenticated SMTP setting, and click Save. Click Manage email apps under the Email apps option. Select the user, and in the menu that pops out to the side, click the Mail tab. Click the Users option from the menu to the left, then choose Active users. We have provided the steps below for a few popular email clients. Instructions for enabling SMTP authentication will vary depending on the email client being used. With SMTP authentication set up, you reduce the risk of receiving mass amounts of unsolicited spam emails and prevent your server from being exploited as an open mail relay. 
Occasionally, your Email Client will require SMTP authentication for your email account to work correctly.
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