Comment by theshrike79

Bah, amateurs. I did this with physical mail.

I was developing an e-letter integration. Basically I had to push a specifically formatted text file to an FTP server, from where the Post office's systems would grab it, print it and mail the physical letter.

There was a specific "this is a test" bit that had to be set so that the actual letter wouldn't get sent.

So... I kinda forgot that bit at one point and received a hefty pile of letters addressed to me to the office.