Access to external OWA

Forum|Forum|9 years ago
December 7, 2016
7 replies
10655 views

Hello,

I need some help, I have a client on my network and their email server is a Outlook Web App exchange server, and I can't access the URL from my network.

Thanks in advance.

tanr

New Member

You don't give much information to go on.

Are you doing deep SSL inspection? I believe Outlook on Windows and Mac (and I think Outlook Web App) do certificate pinning when talking to Exchange servers, so they will fail if you are doing deep SSL inspection. In one case I worked on (Outlook on Mac OSX) there was no good feedback to the user about what the problem was -- all I could find with debug logging turned on for Outlook was a bunch of SOAP errors.

If that's the case, you should be able to set up an SSL Inspection profile with an exception just for the URL they need to access (and preferably only the specific mail protocols).

Beyond that possibility, we probably need more details to give suggestions.

FortiGate models and FortiOS version, logs and errors, etc.

scott_manleyAuthor

New Member

Hi tanr,

Thanks for your reply. No I'm not using deep inspection. They were using a laptop hardlined into out LAN, and also tried on Wifi on their cell phone, which is outside the lan. Both failed to load the web page url. Is there a walk through for the SSL inspection profile setup for this? Im using a fortigte 100d, firmware v5.2.0. in NAT mode.