horde not open browser

[zolotujin]

The page cannot be found

I have not access webmail into internet explorer, my plesk is 8.4, windows 2003 server sp2.

None of the sites access the webmail, this set in IIS but does not open the page of the horde.
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You are not authorized to view this page
You do not have permission to view this directory or page using the credentials that you supplied.

Please try the following:

* Contact the Web site administrator if you believe you should be able to view this directory or page.
* Click the Refresh button to try again with different credentials.

HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials.
Internet Information Services (IIS)

Technical Information (for support personnel)

* Go to Microsoft Product Support Services and perform a title search for the words HTTP and 401.
* Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Authentication, Access Control, and About Custom Error Messages.
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someone can help me.

 

[DmitryT]

Generally 401.1 errors are handled with the following steps:

1) Right click on My Computer > Manage > Users and Groups > find IUSRPLESK_horde account > rigth click on it > set new password;
2) Go to IIS Manager > Web sites > webmail(horde) > Properties > Directory Security > Edit and make sure that you have IUSRPLESK_horde as an default account. Retype the password here as well;
3) You can also try to enable "Integrated Windows authentication" on this very page.