SSL certificate for exchange being blocked

[nj44451]

Everything has been working fine the last month since Installed OPNsense firewall then out of the blue Randow people have started getting SSL certifcate errors when trying to connect to our internal exchange server.

The SSL certificate is valid also one of the warning is an OPN certificate as well.

Anyone have any idea how to have the firewall stop block the SSL certs?  If revert them back to the one firewall everything is fine.

Thanks,

Trent