Auto reply showing internal message to external contacts

Hi All,

For some odd reason when our users enable to auto reply messages for when they are going to be away from the office, only internal messages get sent to both internal users and external users.

As a test I created a new users and turned on auto reply (using Outlook 2010 and also tried it in OWA)

I set the internal auto reply message to, "Intended for internal contacts" and set the external auto reply message to, "Intended for external contacts". Both internal and external emails get the same reply which is, "Intended for internal contacts"

We are running Exchange 2013 on Windows 2012 Server (not R2).

Thanks,

Sam