I am moving zimbra to a new server and using the zimbra upgrade wizard from install.sh.

After upgrading, clam does not start and showing malformed database in zimbra.log

I already have tried clam database and running freshclam again to download new database. But still does not work.

New server is zimbra 5.0.7 running on a guest os RHEL 5.5 (2.6.18-194.11.4) and host running on the same RHEL version.

Thanks in advance.