Fix QP-encoding-problem
Some messages that are being sent to schleuder with a quoted-printable-encoding still have that header "after schleuder", but the body has been decoded. This results in MUAs trying to decode the body, which converts certain character-sequences into unlegible data.
This does not happen with all QP-encoded messages. Best assumption is that it happens only with non-multipart-messages.
Update: The QP-header and body-encoding are for the most part correct! It's just certain character-sequences that have been decoded after Schleuder had its hand on it. Specifically I've only seen this problem with "=86".
Edited by paz