Managed Mail (MM) Tray

Managed Mail (MM) Tray - A stackable cardboard or plastic container with an enclosing cardboard sleeve and plastic strap that is used to transport letter mail to or between post offices.

[Category=Postal ]

Source: USPS, 03 October 2009 10:40:53, http://www.usps.com/cpim/ftp/pubs/pub32/pub32h_p.html

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Managed Mail Tray (MM tray) - Stackable cardboard or plastic containers that come in various models and include a cardboard sleeve and plastic strap.

[Category=Direct Marketing ]

Source: Digital Formatting Services, 29 December 2011 09:44:35, http://www.digitalformattingservices.com/vdp_glossary.htm