Standard Internet text notes consist of a general header and a text body. MIME notes, however, can contain multiple parts, which allows multimedia attachments to be included with the text.
If the general header contains a content type of Multipart/Mixed, one or more attachments follow. There are beginning and ending boundaries for each attachment. The boundary identifier is set on the boundary= parameter that follows the "Content-Type" header tag. See Figure 1 for an example of a multipart MIME note. In this example, each part has a content type, and each text content type can optionally have a character set (charset) defined.
From
@SYSNAM6.CITY.COMPANY.COM:popct08@SYSNAM6.city.company.com Wed
Jan 10
11:33:18 1996 Return-Path:
<@SYSNAM6.CITY.COMPANY.COM:popct08@SYSNAM6.city.company.com> Received: from
SYSNAM6.city.company.com by
fakeps2.city.company.com (COMPANY
OS/2 SENDMAIL VERSION 1.3.2)/1.0) id AA0329; Wed, 10
Jan 96 11:33:18 -0500 Date: Wed, 10
Jan 96
11:33:18 -0500 Message-Id: <9601101633.AA0329@fakeps2.city.company.com> Received:
from endmail9 by SYSNAM6.CITY.COMPANY. (IBM i5/OS SMTP V03R02M00) with TCP;
Wed, 10
Jan 1996 10:23:42
+0000. X-Sender: popct08@SYSNAM6.city.ibm.com (Unverified) X-Mailer: Windows
Eudora Pro
Version 2.1.2
Mime-Version:1.0Content-Type:multipart/mixed;boundary="=====================_821301929==
_"
To: fake@fakeps2.city.company.com From:
endmail9 <popct08@SYSNAM6.city.company.com> Subject:
eudora attachments
X-Attachments:C:\EUDORA\ARGYLE.BMP;--=====================_821301929==_
Content-Type: text/plain; charset=
"us-ascii" An example of using Eudora to send a text
andbitmap.--=====================_821301929==_
Content-Type: application/octet-stream; name="ARGYLE.BMP";
x-mac-type="424D5070"; x-mac-creator="4A565752"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=
"ARGYLE.BMP"
Qk12AgAAAAAAAHYAAAAoAAAAIAAAACAAAAABAAQAAAAAAAACAAAAAAAAAAAAAAAAAAAQAAAAAAAA
AAAAgAAAgAAAAICAAIAAAACAAIAAgIAAAICAgADAwMAAAAD/AAD/AAAA//8A/wAAAP8A/wD//wAA
////AE1EREREREREZERERERERE1E1ERERERERsZERERERETURE1ERERERGxsZERERERNRERE1ERE
REbGxsZERERE1ERERE1ERERsbGxsZERETURERERE1ERGxsbGxsZERNRERERERE1EbGxsbGxsZE1E
RERERERE1sbGxsbGxsbURERERERERG1sbGxsbGxtZEREREREREbG1sbGxsbG1sZERERERERsbG1s
bGxsbWxsZERERERGxsbG1sbGxtbGxsZEREREbGxsbG1sbG1sbGxsZERERsbGxsbG1sbWxsbGxsZE
RGxsbGxsbG1tbGxsbGxsZEbGxsbGxsbG1sbGxsbGxsZEbGxsbGxsbW1sbGxsbGxkREbGxsbGxtbG
1sbGxsbGREREbGxsbG1sbG1sbGxsZEREREbGxsbWxsbG1sbGxkREREREbGxtbGxsbG1sbGRERERE
REbG1sbGxsbG1sZEREREREREbWxsbGxsbG1kRERERERERNbGxsbGxsbG1ERERERERE1EbGxsbGxs
ZE1ERERERETUREbGxsbGxkRE1ERERERNREREbGxsbGRERE1ERERE1EREREbGxsZERERE1ERETURE
REREbGxkRERERE1ERNREREREREbGRERERERE1E1EREREREREZERERERERE3URERERERERERERERERERE--=====================_821301929==_--
See Set up headers to differentiate between recipients, for information about how to change the MIME headers.