If you are currently experiencing issues with the Zimbra Connector for Outlook (ZCO), a troubleshooting step you can you can try is uninstalling the ZCO and reinstalling it. The steps for this process have been outlined below:
Close Outlook on your computer.
After closing Outlook, you will need to access your Control Panel. To do this, you will select the Start button then select Control Panel from the pane to the right.
After the Control Panel appears, you will want to select Uninstall a Program.
Note: The view on the Control Panel may vary depending on which View by: option is chosen (in our example we are using the Category view located in the upper-right)
A new window will appear. This window will begin populating the programs that are currently installed on your computer. You will want to locate the ZCO connector within the list of programs. It may display as VMWare Zimbra Connector for Microsoft Outlook, ZCS Zimbra Connector for Microsoft Outlook or another similar variation. To uninstall the program, you will right-click on the program and select Uninstall from the drop-down menu that appears.
After selecting to uninstall, you will see a series of prompts. You may be prompted to verify that you do wish to uninstall the program, followed by additional prompts that will show the progress of the uninstall.
Once complete, the progress box will disappear and so will the program from your programs list:
Now that the previous version of the ZCO has been removed, you can proceed with the re-installation process.
Ensure that Outlook is still completely closed on your computer.
Follow the instructions for the ZCS Connector for Outlook Setup Wizard:
Next, agree to the terms by selecting the top radio button. Then, click Next:
Confirm the installation by clicking Next:
As the MAPI Connector installs, you will see the following progress bar:
Click Close when the installation finishes:
After the ZCO has been installed, re-launch Microsoft Outlook.
After Outlook opens, your account should appear the same as it did prior to the steps you have taken above.