Date: Mon, 04 May 2015 13:06:51 +0200 From: Markus Hitter mah@jump-ing.de
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The more demanding part of this is to collect the addresses, especially the software to do so. An application which formats them ready for printing, calculates the stamp required, perhaps also prints some customs stickers depending on destination. Here volunteers can easily help and there's no need to hide such discussions, because such software doesn't require the real data, can be written/tested with dummy data instead. All the trusted person (you) has to do is to run this software on the real data and hit the "print" button.
Your post office or shipping company might have software like this already - and if it's done using their software, getting the stamps and stickers right is their responsibility, not yours.
Of course, this software might not be free, in either sense of the word.
teor
teor2345 at gmail dot com pgp 0xABFED1AC https://gist.github.com/teor2345/d033b8ce0a99adbc89c5
teor at blah dot im OTR D5BE4EC2 255D7585 F3874930 DB130265 7C9EBBC7