From: To: Subject: Test content type Date: Tue, 17 Jul 2018 18:06:01 +0200 (CEST) Message-ID: <20180717160601.B25511E37E7@aaa.example.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="sd8f70as98f70as98f70as98f70as98df70as98df7as90f87as90d8f7" --sd8f70as98f70as98f70as98f70as98df70as98df7as90f87as90d8f7 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Content-Disposition: inline Hello world --sd8f70as98f70as98f70as98f70as98df70as98df7as90f87as90d8f7 Content-ID: Content-Transfer-Encoding: base64 Content-Type: image/jpeg Content-Disposition: inline alskfhaslkfjhlaskfjhlaskjfhlaskjfhlaksjfhklasjfhklasdjfhlask lksjdfhalskjfhklasjfhlaskfhlaskfhklasfhklasdjfhlkasdjfhklasd --sd8f70as98f70as98f70as98f70as98df70as98df7as90f87as90d8f7--