Nearly twenty percent (19.9%) of commercial, permissioned emails never reached consumers inboxes in the United States and Canada in the second half of 2009, according to a new report from Return Path. Permissioned email reached only 80.1 percent of consumer inboxes in the United States and Canada during the second half of 2009, a .8 percent increase from the 79.3 percent inbox place in the first half of 2009. In the United States and Canada, 3.