Google 2 factor authentication with Zimbra Desktop

I would like to thank the user "wdurham" for pointing me in the correct direction:

For Google account security reasons, I decided to enable the 2 factor authentication earlier this year. I have been using the Zimbra Desktop email client to consolidate my various email accounts. There are many good features implemented in Zimbra Desktop. The (now) sad reality is that VMware has stopped any further development so I will be looking for a new one :(

1. Enable Google's 2 factor/2 step authenticatoin
2. Create an Application Specific Password (ASP) and keep it handy
3. Temporarily unlock the account
4. Now use the just created ASP in the password field for the Zimbra Desktop client