Hi, Thank you for creating caldavd. I try to configure SSL with Caldavd. I am having issues configuring SSLAuthortiyChain. I use positive SSL which gave following file for intermediate chain AddTrustExternalCARoot.crt COMODORSAAddTrustCA.crt COMODORSADomainValidationSecureServerCA.crt I created a file PositiveSSL.ca-bundle cat COMODORSADomainValidationSecureServerCA.crt COMODORSAAddTrustCA.crt AddTrustExternalCARoot.crt > PositiveSSL.ca-bundle <!-- SSL authority chain (for intermediate certs) --> <key>SSLAuthorityChain</key> <string>/etc/ssl/myProject/PositiveSSL.ca-bundle</string> But I get "HandShake Failed" error. openssl s_client -connect example.com:8443 -CAfile ~/ssl/comodo/PositiveSSL.ca-bundle CONNECTED(00000003) 41275:error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure:/SourceCache/OpenSSL098/OpenSSL098-52.40.1/src/ssl/s23_clnt.c:593: Would you be able to point me to issue?