Sorting flat mail into delivery point sequencing

A method and apparatus for sorting mail to delivery point sequence includes providing a first sortation assembly adapted to performing a first sort pass to mail articles supplied to it and a second sortation assembly adapted to performing a second sort pass to mail articles supplied to it. Mail articles are supplied to the first sortation assembly which identifies the mail articles and performs a first sort pass to sort the mail articles. The mail sorted by the first sortation assembly is conveyed to the second sortation assembly which performs a second sort pass to sort the mail articles to delivery point sequence depth of sort.