Publication 685 - Publication for Streamlined Mail Acceptance for Letters and Flats - Contents 2 Intelligent Mail Full-Service 2-1 Program Overview The Postal Service offers the mailing industry two options..." /> Publication 685 - Publication for Streamlined Mail Acceptance for Letters and Flats - Contents 2 Intelligent Mail Full-Service 2-1 Program Overview The Postal Service offers the mailing industry two options..." />