How to Set Up Basic Authentication for Your Email Server
Learn how to set up basic email authentication with SMTP, IMAP, or POP3. Step-by-step guide, security risks, and why modern methods are safer.
You may need to contact your IT administrator to help set this up . Each email server is a bit different, but we've tried to capture information on finding your SMTP settings from these popular providers: Gmail If you're using two-factor authentication in G-Suite or with Gmail, you'll likely need to use an App Password.
Setting up basic authentication for one user in Exchange (On
How to setup basic authentication for one user in Exchange Server 2019. Here's a step-by-step guide: Step 1: Ensure Basic Authentication is Enabled on the Server By default, basic authentication might be disabled on the Exchange server due to security concerns. Verify and enable it for the required services if needed. 1.1. Check the status of Basic Authentication You can check whether basic ...
Quick SMTP setup reference SMTP (Simple Mail Transfer Protocol) is what your client uses to send mail. A working setup needs four things right: server hostname, port, authentication , and TLS mode. Get any one wrong and the connection fails or, worse, succeeds but leaves mail in plaintext on the wire.
Enable or disable SMTP AUTH in Exchange Online
For more information, see Security defaults in Microsoft Entra ID If your authentication policy disables basic authentication for SMTP, clients cannot use the SMTP AUTH protocol even if you enable the settings outlined in this article. For more information, see Disable Basic authentication in Exchange Online.
This article describes how to use a service principal to create authentication credentials for sending emails using Simple Mail Transfer Protocol (SMTP).
How to configure SMTP with basic auth with Microsoft 365
Enable Basic Authentication for the SMTP protocol Save your changes and allow time for propagation (it may take a few minutes) Enable SMTP Auth for individual mailboxes In the admin center, go to Users > Active users Select the desired user, then click on Mail Under the Email apps section, click on Manage email apps
Learn how to set up your own SMTP server for improved control and email deliverability, covering prerequisites, installation, and security.
Enabling Basic Authentication for a Single Mailbox in Exchange Online
Enabling Basic Authentication for a mailbox increases security risks. Make sure to migrate your application to modern authentication methods as soon as possible.
Learn how SMTP authentication works, which ports and mechanisms to use, and how to migrate before Microsoft's 2026 Basic Auth deadline.