Binary content and non-ASCII characters are almost always base64-encoded, and base64 never produces a From_ sequence (because of the space). Anyaway, I'm not e

Binary content and non-ASCII characters are almost always base64-encoded, and base64 never produces a From_ sequence (because of the space). Anyaway, I'm not endorsing the leading-space technique. I'm just observing that it's out there in the wild.