An anonymous reader writes "About 4 weeks ago, a header corruption bug appeared in Hotmail. When composing a plain-text message in web-based Hotmail which has more than one entry in the References header (i.e. a reply to a reply), Hotmail is inserting an extra carriage return. This corrupts the header block, and receiving email clients (including Hotmail itself) correctly treat the rest of the headers as part of the body. As a result, the "Content-Transfer-Encoding: quoted-printable" isn't processed, and encoded characters in the body, such as =2C for a comma, are not being decoded.
There have been several posts per day to http://windowslivehelp.com/community/4.aspx about this. That forum, which is the official Hotmail support channel, appears to be staffed by scripts that repeatedly post "Optimize your browser", "Send us a screen shot", and "Tell us your username". No Microsoft support staff have said anything about trying to reproduce the problem, or reporting it to the engineering staff.
Does anyone know a better way to get a bug report to someone at Microsoft who can do something about it?"