The Escambia County Supervisor of Elections Office delivered more than 26,000 vote-by-mail ballots to the post office today for the Primary election. Voters could receive their green or ivory colored vote-by-mail packages as early as tomorrow. Voted ballots must be received in the Supervisor of Elections Office no later than 7 p.m. on Election Day, August 30. Ballots require a first-class postage stamp ($.47 postage) if returned by mail.