New certificates, but "the name on the security certificate is invalid"
Hello! Our vendor recently generated new certificates for my comapny's site, which sits behind a Firebox. I used the internal portal to download the Fireware web CA certificate using these instructions and the I downloaded the Fireware HTTPS Proxy as well. I deployed both to the Trusted Root CA on my computers using Group Policy, as detailed here. That went fine, and I see the certificates in the computers certificates in my Windows 10 PCs. However, Outlook users are still reporting that Security Alert windows pop up during the use of Outlook. The warnings have "outlook.office365.com" or "autodiscover-s.microsoft.com" at the top and state that information exchanged is still encrypted, but that there is s problem with the certificate. There are three sections below that, the top two with green checkmarks and the bottom with a red X. The X is next to "the name on the security certificate is invalid or does not match the name of the site." Has anyone seen this before and fixed it? It looks like my vendor didn't generate the certificates right, but I don't know firewalls well enough to state that.