Zimbra Desktop vs. intheloop.io

Zimbra Desktop is a free and open source email client application that gives you online and offline access to all your email accounts in one place. Zimbra Desktop works with many types of email systems to synchronize email, contacts and calendar data between users mailboxes in the cloud and local data stored on your computer disk.

Loop Email is a simple yet powerful team inbox. It's been built with the familiarity of an email client, so it's easy to set up and use for any teams that are used to handling customer messages via email. It's hard being productive when you spend half your time reading emails, and the other half flipping between platforms to tell your team about said emails. You need a single app that's going to help you move faster and keep everything and everyone on the same page. This is Loop.