If a user changes his email address then he may well not be able to log into LCS anymore due to that not matching his logon.
This script cycles AD and checks for mismatches. If you specify /commit it will write the changes back to AD.
'==========================================================================
'
'
'
' NAME: SIPFix.vbs
'
' AUTHOR: Stuart Bennett
' DATE : 26-05-2006
'
' Usage: sipfix.vbs