i wont to install a signed Certificate. I create a Dir on /root/certs/ I put the mail_startknopf_net.crt and mail_startknopf_net.ca-bundle in this Dir.

But when i execute this i get this Error Message:

root@mail:~/certs# /opt/zimbra/bin/zmcertmgr verifycrt comm /opt/zimbra/ssl/zimbra/commercial/commercial.key ./mail_startknopf_net.crt ./mail_startknopf_net.ca-bundle
** Verifying ./mail_startknopf_net.crt against /opt/zimbra/ssl/zimbra/commercial/commercial.key
Certificate (./mail_startknopf_net.crt) and private key (/opt/zimbra/ssl/zimbra/commercial/commercial.key) match.
XXXXX ERROR: Invalid Certificate: ./mail_startknopf_net.crt: /C=US/ST=UT/L=Salt Lake City/O=The USERTRUST Network/OU=http://www.usertrust.com/CN=UTN-USERFirst-Hardware
error 2 at 2 depth lookup:unable to get issuer certificate
I know the isnīt new Problem but can anyone help?