Already did that. :) Although since I'm doing SSL offload, the IIS certs shouldn't matter.
DAMIEN SOLODOW Senior Systems Engineer 317.447.6033 (office) HARRISON COLLEGE From: [email protected] [mailto:[email protected]] On Behalf Of Debora Gilbert Sent: Saturday, October 15, 2016 8:58 PM To: [email protected] Subject: Re: [Exchange] Outlook certificate error? Damien Check your IIS certs and make sure you're not using a self signed one. Deb From: <[email protected]<mailto:[email protected]>> on behalf of Damien Solodow <[email protected]<mailto:[email protected]>> Reply-To: <[email protected]<mailto:[email protected]>> Date: Wednesday, October 12, 2016 at 14:46 To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [Exchange] Outlook certificate error? We've been intermittently finding an odd issue; Outlook will pop-up the following message: There is a problem with the proxy server's security certificate. Outlook is unable to connect to the proxy server FQDN. (Error Code 80000000). Clicking Ok on the message gets rid of it and Outlook acts normal. I've looked at the Outlook connection status while the message is onscreen, and it shows successful connections to HTTPS as well as usually a disconnected one for the mailbox. OWA doesn't show any cert issues, and it's sporadic. Exchange 2010 SP3, CU14 on Windows Server 2008 R2 SP1.k Clients are Windows 7 SP1 x64, with Outlook 2013 SP1 x86. Our CAS servers are behind an F5-LTM doing SSL off-load. This isn't a new setup; the issue start occurring in the couple months as far as I've been able to determine. DAMIEN SOLODOW Senior Systems Engineer 317.447.6033 (office) HARRISON COLLEGE 550 East Washington Street Indianapolis, IN 46204 www.harrison.edu<http://www.harrison.edu/>
