In you resolv.con you should only need one DNS server, that would be the one that has the DNS records for Zimbra. If both DNS servers have the same records then you may leave both in there.
The following line in your hosts file also needs changing (the rest of it is OK and should be left as it is):
Code:
192.168.0.200 company.com www.company.com
You need to have a Fully Qualified Domain Name (FQDN for the Zimbra server and the line above should look like this:
Code:
192.168.0.200 mail.company.com mail
As I mentioned earlier, the hostname 'mail' is just my example and it can be anything you like with the proviso that's it's the same in the DNS records and the hosts file.