connect to a separate zimbra installation's share

I need, from my zimbra account, to connect to a shared folder of a separate zimbra installation. Is it possible?
To be more specific, the folder si a todo list, but it may be useful to have it for all the types of folder.

you can share the task list independently so users could access it via a url, but you could not mount it as a shared folder within zimbra

thanks, i'll add an RFE for this

There's an existing RFE for this - Bug 13891 – support sharing between separate ZCS installs

thank you, I added my vote to it.