https://github.com/zyn3rgy/LdapRelayScan
A tool to check Domain Controllers for LDAP server protections regarding the relay of NTLM authentication. If you're interested in the specifics of the error-based enumeration, see below. For details regarding what can be done when you identify a lack of LDAP protections, see the references section.
The tool has two methods, LDAPS (the default), and BOTH. LDAPS only requires a domain controller IP address, because this check can be preformed unauthenticated. The BOTH method will require a username and password or NT hash. The Active Directory domain is not required, it will be determine via anonymous LDAP bind.