Zimbra Migration: IMAPSync

• Data Type(s) Migrated: Mail
• Recommended for: xmbase Zimbra customers, customers migrating from non-Exchange mail servers
• Some technical proficiency required (command line-based, requires Linux, Mac OS X or cygwin)

This can be the most robust method of migration, though it's only limited to mail. IMAPSync will compare source and destination hosts, and copy any messages not on the destination server from the host server. You can run this multiple times and generally not result in any duplicate messages in the destination mailbox.

It is a command line-based perl script, so it requires either some sort of unix-based system or cygwin (or other compatible Perl setup on Windows). Consequently, it does require some level of technical proficiency to be used.

Previously, this was normal free OSS software, but the author has since started requiring payment for it. Yet, not only was it previously released under an open source license, but it continues to be licensed as OSS with the newer paid versions, so you can still get reasonably up-to-date versions legally. If you wish to purchase the software, you can get a windows executable. All others will want to install from the git repository.

• IMAPSync Homepage: http://imapsync.lamiral.info/
• Open source repository: https://github.com/imapsync/imapsync