Question:How To Configure Exchange OWA Not To Ask For Username And Password

Exchange Server 2010 can be configured not to ask the user for a username and password when login to OWA.

This configuration also knows as Integrated Authentication.

In order for this to work we have to configure two things:

1. Exchange Server CAS Servers

2. The client IE Intranet Zone Settings (can also be configured using Group Policy)

We will start with the Exchange Server Settings.

Open EMS -> Server Configuration – > Client Access -> Select the CAS Server – > Select and double Click on Outlook Web App -> Go to Authentication Tab and Select the Integrated Windows Authentication and Basic Authentication

OWA 1

Do the same for ECP

OWA 2

Restart IIS

OWA 3

Add the OWA URL to the Local Intranet Sites

OWA 4

Type the OWA URL and Click Add and Close

OWA 5

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