Account Services on the Web

How to name a list
  • A valid list name is 2 to 64 characters long.
  • A valid list name contains only the following kinds of characters:
    • lowercase letters ('a'..'z')
    • numeric digits ('0'..'9')
    • dot ('.'), dash ('-'), and slash ('/')
  • The first and last character of a valid list name must be a lowercase letter or a digit
  • Consecutive punctuation characters (.-/) are not valid.
  • Use of the slash character is not recommended as it is not valid in Windows Active Directory (if such a list is provisioned into AD, the slashes will be replaced with dashes).
  • Some system-created lists may contain an underscore ('_'), but this character is not available for user-created lists.
Some listnames are reserved:
  • You can not use a list name that someone else has already used.
  • You can not create a list with the same name as someone else's Net-ID.
  • If you create a list with the same name as your Net-ID, it can not be used for email.
  • List names that start with grp- or rsrc- are reserved for Office 365's internal use.