To: foo@example.com Subject: multipart Date: Sun, 01 Jan 2000 00:00:00 +0000 From: =?UTF-8?Q?"Peter M=C3=BCller"?= ContENT-type: multipart/alternative; boUNDary="crazy-multipart" MIME-version: 1.0 multipart message --crazy-multipart Content-type: text/plain The first part is horizontal --crazy-multipart Content-type: text/x-vertical T s p i v h e a s e e c r r o t t n i d c a l --crazy-multipart--