WORKAROUND
To work around this behavior, use one of the following methods.
Method 1: Specify the domain when you log on
When you log on, specify your domain in your logon credentials. To do so, use one of the following formats in the
User name list of the
Connect to Servername.com dialog box (where
domain is the name of your domain, where
user is your alias, and where
UPN is the user principal name):
Method 2: Customize Logon.asp
If you do not want to specify the domain when you log on, create a custom Logon.asp page that includes the default domain (either visible or hidden). You can also display a list of the domains that the server supports.
The following example code illustrates how to create a custom Logon.asp page. To use this code, replace both instances of
<FORM> in each language-version of the Logon.asp file with the following code.
Note You must replace both instances of
<FORM> with this code because one instance is for rich experience and the other instance is for basic experience. This replacement is required for browser compatibility.
Also, if you make a custom Logon.asp page, users will no longer be able to log on with a user name of
domain\
user name. If they do this they will actually be passing
domain\
domain\
user name.
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.
Important Microsoft does not provide assistance in customizing OWA objects and if you contact Microsoft about an OWA issue for a server that OWA is customized on, you must replace the customized files with the original versions of the files.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
327178
Microsoft support policy for the customization of Outlook Web Access for Exchange
<script Language=javascript>
<!--
function logonForm_onsubmit()
{
if (logonForm.username.value.indexOf("@") !=-1)
{
return true;
}
logonForm.username.value = "<name of NetBIOS domain here>\\" + logonForm.username.value;
return false;
}
//-->
</script>
<FORM action="/exchweb/bin/auth/owaauth.dll" method="POST" name="logonForm" autocomplete="off" onsubmit="logonForm_onsubmit()">
Note In the script, make sure that you add the name of your network basic input/output system (NetBIOS) domain in the code. In the script that is provided, put your domain name in the
<name of NetBIOS domain here> location.
Method 3: Disable authentication for incoming Web requests in ISA Server
If OWA is published behind a server that is running ISA Server, verify that no authentication methods are configured for incoming Web requests.
- Open ISA Server.
- Right-click the ISA Server name, and then click Properties.
- Click the Incoming Web Requests tab.
- Select the Web request listener that is used for OWA, and then click Edit.
- Click to clear all the authentication methods, including the Integrated authentication method.
- Click OK.
- Restart the Microsoft ISA Server Web Proxy service.