http://tools.ietf.org/html/rfc3501#page-34
Should return a list of tuples: [ { exists, 17 }, { recent, 2 }, { unseen, 8 }, ...]
http://tools.ietf.org/html/rfc3501#page-34
Should return a list of tuples: [ { exists, 17 }, { recent, 2 }, { unseen, 8 }, ...]