Article ID: 114168, created on Jun 20, 2012, last review on Apr 26, 2014

  • Applies to:
  • Plesk 11.x for Windows


After changing webmail on a domain from Horde to Atmail, webmail may become unavailable. The following error is added to the Event Log:
Log Name:      System
Source:        Microsoft-Windows-IIS-W3SVC
Date:          6/4/2012 6:32:26 PM
Event ID:      1007
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      A10-52-40-183
The World Wide Web Publishing Service (WWW Service) did not register the URL prefix for site 6. The necessary network binding may already be in use. The site has been disabled. The data field contains the error number.


In IIS Manager, start the webmail (atmail) site.

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