[Geary] inbox zero on non-gmail account

[Federico Bruni <fede inventati org>]

Hi all

I started using Geary hoping to get rid of my Gmail account, but there 
are still some limitations for non-gmail accounts that prevent me to do 
the final switch. These limitations are about productivity and not any 
fancy feature. In particular, I'd like to be able to process the emails 
in the way the "inbox zero" (or "empty inbox") strategy suggests.

So, first of all, what I'm  missing most is the archive action:

https://bugzilla.gnome.org/show_bug.cgi?id=712972
https://bugzilla.gnome.org/show_bug.cgi?id=713986

Not supported yet, but I think that I can achieve something like that 
with SPECIAL-USE?
https://bugzilla.gnome.org/show_bug.cgi?id=714103

Can somebody explain how to do it?

Secondly, if I could make archiving work, would I be able to set the 
label filtering on the server and still have the archive action 
working? In other words, can a thread be marked with a label and be 
archived?
This is how my Gmail works: most of the incoming emails get an 
automatic label and when I archive them (i.e. move them away from the 
inbox) I can still find them on their specific label and in the All 
mail label (the archive label).

Finally, another concern for my final switch is the possible lost of 
all my emails. As local backup is still an open issue:
https://bugzilla.gnome.org/show_bug.cgi?id=713832

is it possible to recover the emails from geary database and send them 
back to the server?

Thanks in advance for any hint
Federico