Active Directory: Users and emails

[yayitazale]

Select Top 1000000 tblADusers.Username,
  tblADusers.Name,
  tblADusers.Firstname,
  tblADusers.Lastname,
  tblADusers.Userdomain,
  tblADusers.Displayname,
  tblADusers.email As [E-mail],
  'usersm.png' As icon,
  tblADusers.Lastchanged
From tblADusers
Where tblADusers.email Is Not Null
Order By tblADusers.Username