1 Content-Type: multipart/mixed; boundary="AAA" 2 From: Mail Delivery Subsystem <xxx (a] example.com> 3 To: yyy (a] example.com 4 5 This is a MIME-encapsulated message 6 7 --AAA 8 9 Stuff 10 11 --AAA 12 Content-Type: message/rfc822 13 14 From: webmaster (a] python.org 15 To: zzz (a] example.com 16 Content-Type: multipart/mixed; boundary="BBB" 17 18 --BBB-- 19 20 --AAA-- 21
