Unrecognized Authentication Type

How To Fix Unrecognized Authentication Type Error?

When you access an email account on the Windows Office Mail program, the unrecognized authentication type error occurs on the system. Read the following section to know the reasons causing the error and the various ways to fix it.

Causes of the error:

  • Step 1:If the SMTP server properties do not match with the TLS authentication protocol, the authentication error occurs on the Mail service.
  • Step 2:The error can arise when the SMTP AUTH settings are turned off.

Solutions For The Error:

Enable The SMTP AUTH For Emails

  • Step 1:Go to the Microsoft admin window on the system and click the Users menu.
  • Step 2:Select the Active users option and then choose the user account.
  • Step 3:Now, click Mail, following that navigate to the Email apps section, and select Manage email apps.
  • Step 4:The Authenticated SMTP settings appear on the screen; see if it is enabled.
  • Step 5:If it is not enabled, then tick the checkbox to enable it.
  • Step 6:After that, click the Save changes menu to save the settings. These are the solution to resolve unrecognized authentication type error.

Change The Connector Settings

  • Step 1:Get the IP address of the computer on which you are accessing the Windows program.
  • Step 2:Next, go to the Office admin page and sign in to the Office account.
  • Step 3:Click the Domain and see if the domain entry is “contoso.com,” and it is chosen.
  • Step 4:Select Manage DNS and search for MX record. A point to address value is assigned to the MX record with the name “cohowineinc.”
  • Step 5:Following that, see if the domains are verified, and if it is not, then you could lose all the emails.
  • Step 6:Later, return to the main page Office 365 and go to the Admin page.
  • Step 7:Under Admin, select the Exchange menu. Following that, choose Main flow.
  • Step 8:Verify if the IP addresses of both the sending server and the organization are the same.
  • Step 9:After changing the IP address, save the settings and update the DNS records of the admin account. Now your unrecognized authentication type error is resolved.

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