XWEB: Creating Folders with Special Characters in the Name Is Not Allowed


When you create a folder by using Microsoft Outlook, there are no character restrictions on the folder name. However, if you use certain special characters when you create a folder by using Microsoft Outlook Web Access (OWA), you receive the following error message:
The folder name entered contains illegal characters.
In Outlook Web Access, when you try to view any existing folders that were created in Outlook (MAPI client) that have names that contain these special characters, you may receive the following error messages:
The page cannot be found HTTP 404 - File not found
HTTP/1.1 423 Locked


This problem occurs because in Outlook Web Access, you cannot use the following special characters to name a folder:
  • Brackets ([])
  • Forward slash mark (/)
  • Backward slash mark (\)
  • Ampersand (&)
  • Tilde (~)
  • Question mark (?)
  • Asterisk (*)
  • Pipe or vertical bar (|)
  • Angle brackets (<>)
  • Quotation marks (")
  • Number sign (#)
  • Semicolon (;)
  • Colon (:)
  • Plus (+)
  • Period (.)
  • Two periods (..)


To resolve this problem, avoid using special characters when you create a folder in Outlook Web Access or in Outlook (MAPI client). Do not use special characters in private stores or in public stores on an Exchange server.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.