I had a play around with Zimbra on my Desktop. Unfortunately I can’t say I like it that much. The Zimbra desktop servelet is constantly running in the background and it downloads the whole mailbox. Which for me on the mailbox I was testing is 1.5Gb+. Offline IMAP has a better mechanism where you select the folders you want to keep offline.
While offline Zimbra is very cool, I’m not 100% sure it works for me.
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