Obtaining certificate chain for listserver.risc.jku.at, one moment while we download the listserver.risc.jku.at certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for listserver.risc.jku.at, one moment while we re-check the listserver.risc.jku.at certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for listserver.risc.jku.at failed
Sorry, the request for listserver.risc.jku.at could not be completed...
We could not load the certificate for listserver.risc.jku.at, it might not exist or we could not reach the server, complete the TLS handshake, etc.
Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers and expose a security risk.