Hello group, have an issue that I've been troubleshooting this week and am turning here for some help. I have an Exchange 2010 SP3 CAS w/ Edge Transport and TMG 2010 sitting in a DMZ on the perimeter. This Exchange server belongs to Company B and is being hosted in our environment (Company A). We have a RADIUS server for 2FA that we use for OWA at Company A.
We have RADIUS OTP authenticating from Company B's TMG OWA rule against Company A's RADIUS server. For the most part, everything is working as expected except the login. In Company A environment, if we perform the 2FA at the login page, it will take the user directly to mailbox. With Company B, even though it authenticates against RADIUS server fine, it then takes me to a second OWA login page where I can insert just username/password and login. I tried specifying separate Internal Network Credentials on the main 2FA OWA page but it still fails, even though the username/password are identical to what works on the second OWA login page. I searched around and compared the TMG rules on Company B to what we have at Company A but am not getting anywhere worthwhile. Any ideas? Thanks. -Geoff Confidentiality Notice: This is a transmission from Community Hospital of the Monterey Peninsula. This message and any attached documents may be confidential and contain information protected by state and federal medical privacy statutes. They are intended only for the use of the addressee. If you are not the intended recipient, any disclosure, copying, or distribution of this information is strictly prohibited. If you received this transmission in error, please accept our apologies and notify the sender. Thank you.
