Context: We have a MS Exchange Add-on to implement email address substitutions of Distribution Lists. It's called Code2. It uses Active Directory group common names (CN) and this has a max limit of 64 characters.
Questions:
- Would it be possible to increase this limit?
- If yes, is there a patch for this?
Best Answer
No you cannot* change the CN limit to be larger than 64. References include MSDN, MSDN again, and a Microsoft group thread.
(*Okay, yes you can hack around LDAP in ADSI edit and find the CN attribute and increase it. This will do Evil Things as CNs are expected to be a certain length limit that will fit in the overall 256 character display name limit and also break certificates if you ever have a PKI because certificates are expected to never have CN attribute longer than 64 characters as per RFC 5280)