my outlook clients can no longer connect to the server as long "Trusted certificate needed" is checked in the Kerio client.
I can see the following error message in the log:
S/MIME: Issuer (CN=DST Root CA X3) was not downloaded. Content of URI http://apps.identrust.com/roots/dstrootcax3.p7c isn't valid certificate.
How can I force the server to accept the certificate?
I use the same certificate for external access via haproxy and every checks states, that everything is ok.
Hope someone can help.