Recently Microsoft announced that the Mac Messenger for the Mac will support OCS functionality. One of our graphical designers is having a iBook and also installed the latest Mac OS/Office 2008 version. Today we had a short discussion about his Mac Messenger 6.0.3 (link). He had some complains about his Mac OS integration and ability to chat with contacts into the OCS-infrastructure.
So we did some tests and the Mac Messenger is fully compatible with OCS2007. If its supported I don't know but it works. Some people in the community had some problems importing the correct certificates. We didn't change anything in the Client Connection Filter on both the internal OCS server or the OCS Access Edge.
When signing in we get the following error message:
Microsoft Messenger cannot sign you in:
Either the date and time settings are incorrect, or the digital certificate file is not valid or installed on your computer. If date and time are correct, see your network administrator to verify that your digital certificate file is valid and installed.
Below the steps to correct this error.
Step 1. Import the correct certificates (be sure importing both the External Edge (RA) certificate if you have it and also the internal certificates (so import both the root/subordinate CA).
We went to Applications -> Office 2008 -> Office - Microsoft Cert Manager and imported the certificate in the Apple trusted root certificate authority. Make sure all these certificates are trusted for everyone on the system (we had some difficulties with it)
to configure the Mac Messenger, we choose to Manually configure settings and entered the FQDN of the OCS server and checked to communicate with TLS. You can also use the Automatic setting (make sure the internal and external SRV-records in DNS are entered correctly).
to connect the Microsoft Messenger. Make sure the domain name is entered correctly and that the SIP address space is correct (example: firstname.lastname@example.org).