WHAT IS THE GOAL Migrate Zimbra 7 (mailboxes, documents,…) to new 64 bit server with Zimbra 8.0. STEP BY STEP GUIDE 1. PREPARE OLD SERVER name: mail.domain.tld OS: Centos 5.8 32 bit Zimbra: Zimbra 7.2.0 [zimbra@oldserver ~]$ cat /etc/redhat-release CentOS release 5.8 (Final) [zimbra@oldserver ~]$ zmcontrol -v Release 7.2.0_GA_2669.RHEL5_20120410001957 CentOS5 FOSS edition. UPGRADE to latest…