The franking commission reviews official mail, email and social media for overtly political or inflammatory content.

FORBES: Democrats Block Usage of the Word 'Obamacare' in Congressional Mailings

Before the relaunch, the special franking took place at a post office in the nearby town of Llandeilo.

BBC: Bethlehem post attracts festive flock

Baggage tags, banknotes with electronics embedded for security and even postage stamps that can be read by smart franking machines are other possible uses.

ECONOMIST: A new use for a common material

The Landhotel Moorhoff in Franking, Austria and the Beer Spa Bahenec in Pisek, Czech Republic, offer similar bathing experiences, but replace the traditional tub with a beer-style barrel.

BBC: Bathe at a beer spa

But as those wind down, the replacement fields are harder to tap, and requiring franking technology to make oil more recoverable from promising places like the Bakken Shale in the Dakotas.

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Pitney Bowes, which makes products related to post, such as sorters and franking machines, could see demand for its services rise if the delivery week is cut short, says its chief financial officer, Michael Monahan.

ECONOMIST: America s struggling postal service