here are the links..you can see it yourself
Zimbra 4.x link..you can import the cert and it will work:
https://zimbra1.ocpwebserver.com:7071/zimbraAdmin/
zimbra 5.0 ..try importing and then going back to the link:
https://zimbra12.ocpwebserver.com:7071/zimbraAdmin/
hope someone can give me some insight on this
Thanks
Raj