How to understand the format of maildirsize files?

**Kent Brockman** · 03-12-2008 07:16 AM

Almost everybody has seen the internal format of a maildirsize file, but what in the world means all the data stored? may anybody explain this?

Code:

20971520S,0C
1195 1
1687 1
       -1195           -1
1436 1
1471 1
       -1687           -1
5895 1
1388 1
1410 1
1591 1
1440 1
1255 1
1773 1
1546 1
      -14631           -7
5290 1
8241 1
1659 1
7496 1
1647 1
2538 1
1444 1
      -18105           -5
      -14784           -5
1437 1
1461 1

It seems to be that first line stores the account capacity in bytes and the following lines add the size of received email and sustract the deleted ones. Is this correct or may I be missing anything?

Regards!