I don't think it sorts by time left to claim (which is the problem).  It sorts by how long ago it was added to inbox.  Either ascending or descending.  At least that's how I have it figured.

So the 3 days let on the energy refil was placed in our inbox like 99 days ago, and the arena refil was placed earlier today, so they will always be on opposite ends of the list.

This is BS!  It should sort by time left to claim!

The  one  thing  I  would  like  to  see  in  inbox  the  most  is  being  able  to  sell  artifacts  from  there  lol

THIS WOULD BE AMAZING. Adding it to my list for the suggestion file to Plarium.

I have to agree this would be a giant leap for man-kind.  The stuff in storage has already been vetted a few times. The stuff in inbox...99% trash.  

[EDIT] Ok ok, woman-kind too...

A+++ edit

i

Am I missing something? I can't think of a single time I ever have faced the problem of having items in my inbox that I want to sell o_O

Tourney grinds for me. A few thousand energy fills up my inventory then my inbox if I'm not autoselling things.

as long as we're trying to fix the inbox, i'd really like it if they added a filter for accessories... or if they showed up in the artifact filter... or at least if they showed up in the 'other' filter (which would also have the effect of giving that filter a purpose, as i genuiely don't think i've ever seen anything qualify for that one). really anything's fine, as long as it's not the current system.