[Solved] HTTP Error 401 Unauthorized When Accessing Zimbra 8.8.9 Shared Calendar and Mailbox

Problem: HTTP Error 401 Unauthorized show on browser when try to access Zimbra 8.8.9 Shared Calendar and Mailbox. It’s most likely the browser either did not send another request with Authorization in
response to the 401, or had sent an Authorization which is not using GSS-API / SPNEGO scheme.

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Content Summary

Solution 1: Make sure Browser is Supported
Solution 2: Configure Browser Settings
Reference

Solution 1: Make sure Browser is Supported

The following browsers are supported: Windows PC: Internet Explorer 6.0 or later, Firefox 3.0 or later, Chrome, Safari

Apple Mac computer: Safari

Solution 2: Configure Browser Settings

Originally published at pupuweb.com on October 1, 2018.

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Technology Blogger writing about emerging technologies (pupuweb.com) and marketing/lifestyle (paminy.com)

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