This is RHEL5 isn't it? You should have this file: /etc/ld.so.conf.d/zimbra.ld.conf - does it contain the same info as this:
Code:
/opt/zimbra/lib
/opt/zimbra/sleepycat/lib
/opt/zimbra/openldap/lib
/opt/zimbra/cyrus-sasl/lib
I asked earlier about this mode setting:
Code:
$ zmprov gs zimbra.domain.com | grep Mode
zimbraMailMode: mixed
what I meant to ask was - have you changed that mode since you've moved to this server?
One other thing you should rule out is file permission problems. Can you shutdown Zimbra and run the zmfixperms script then restart Zimbra.