Server :: Apache: Can Filter The User's Login Name

Where I work, the IT people have the systems setup (wrongly in my opinion) to require not just the user's username but to have the username pre-pended with regional info. Like this:Username: RegionName//UserNamePassword: ********The server I maintain doesn't require this (even though I have it authenticate through the same services as the rest of IT (active directory via ldap))The problem is I see lots of authentication errors in my apache error_log file because people are using the RegionName//UserName login