Validate proper userPrincipalName

[STeve]

Hi guys,

I was wondering if you guys had written any sample code (ie. regular
expressions) which would validate the userPrincipalName or
sAMAccountName used in Active Directory. Are there any invalid
characters (@,#,|,<, etc) or any invalid formats (a....) which cannot
be used within an Active Directory userPrincipalName or
sAMAccountName.

For example,
valid userPrincipalName: john.smith
invalid userPrincipalName: john.

valid userPrincipalName: a*@
invalid userPrincipalName: a*

Any help is appreciated.

Thanks in advance,
Steve

 

[Tim Springston \(MSFT\)]

Hi Steve-

The UPN is a string property that can contain any string value. Whether
that value will be read correctly is another matter.

MSDN has more information at:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netdir/ad/naming_properties.asp