Bad HTTP Request
 

It appears you guys have some sort of front-end firewall/filtering in place for your web server that disallows certain content to be posted (in my case it was a config file with SQL in it) to be posted in a message body (probably some overly aggressive system that tries to stop SQL injection attacks). The problem is... well... you can't post certain stuff. :)

I'd love to give you an example, but the web server blocks it with a "Bad Request" error, so I can't post it. :)