I've just started using Zimbra and absolutely love it. There's Just a tiny tweek that would really help with my work-flow, I'm not sure if it would really help other users but I hope so.
I would love to be able to create a user defined custom search for the right click drop down option.
At the moment I can select an email and do a right click on the sender and carry out a search, Zimbra works really well and will display all emails from the selected sender (really quickly.)
I think it would be great to be able to customize this action, even just within a basic search. Being able to create a saved user defined custom search in the right click options that would take the senders email address and place it in either:
To / Cc:
The Content field would be most beneficial as this would display all correspondence with that person.
Hope I've explained my self well enough.