explicit proxy - user UPN in AD does not match our domain name and thus LDAP lookup fails
I have an issue with explicit proxy authentication with NTLM with LDAP lookup to AD - in summary our user UPN in AD does not match our domain name and thus LDAP lookup fails
Our domain is exampleAD.com
My user is user1@exampleAD.com
My UPN is email@example.com
If I change my UPN back to user1@exampleAD.com
the user authentication in explicit proxy then works, but we have a requirement (Office 365) for our UPN to match our email domain name, thus must remain different to domain user name.
Any ideas what we can do to resolve?
Thanks in advance
The log details if it helps are below - but not sure this is relevant as I know the workaround is to change the UPN.
GeneralDate2019/01/21Time11:25:51Virtual DomainrootLog DescriptionExplicit proxy user group query failed
ActionActionNTLM-authPolicy0StatusfailureReasonGroup information query failedAuthentication ProtocolHTTP(10.10.10.10)
EventMessageUser failed in group information query