Gail Dapogny on wed 29 jan 03
A slightly, but only slightly OT question (sorry , Mel). It's a computer
question.
I sometimes get a post which contains the message embedded in Gobbledegook.
A sample is below. I am baffled; wonder if it has to do with using my Mac,
or a poor setting. I know that sometime recently, you were talking about
HTML (don't know what that means) involved in settings, but don't know if
that is relevant here.
Thanks for any help.
Gail
This is the sample:
Received: from perfectworld.mr.itd.umich.edu (perfectworld.mr.itd.umich.edu
[141.211.125.44])
by alien.imap.itd.umich.edu (3.6i) with ESMTP id h0SFtLq29836
for ; Tue, 28 Jan 2003 10:55:21
-0500 (EST)
Received: (from daemon@localhost)
by perfectworld.mr.itd.umich.edu (3.6u) with LDAP id h0SFtL602106
for gdapogny@g.imap.itd.umich.edu; Tue, 28 Jan 2003 10:55:21 -0500
(EST)
Received: from smtp.comcast.net (smtp.comcast.net [24.153.64.2])
by perfectworld.mr.itd.umich.edu (3.6u) with ESMTP id h0SFtK502092
for ; Tue, 28 Jan 2003 10:55:21 -0500 (EST)
Received: from computername
(bgp01024299bgs.sanarb01.mi.comcast.net [68.40.84.175])
by mtaout05.icomcast.net
(iPlanet Messaging Server 5.2 HotFix 1.09 (built Jan 7 2003))
with SMTP id <0H9F005C0LK7YX@mtaout05.icomcast.net> for gdapogny@umich.edu;
Tue, 28 Jan 2003 10:55:20 -0500 (EST)
Date: Tue, 28 Jan 2003 10:47:52 -0500
From: Susan Salmeron
Subject: Woman's Joke
Message-id: <001c01c2c6e4$9ec5c700$0300a8c0@computername>
MIME-version: 1.0
X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700
X-Mailer: Microsoft Outlook Express 5.50.4807.1700
Content-type: multipart/alternative;
boundary="Boundary_(ID_AULgA1NQtwj0WOtNQUJWRw)"
X-Priority: 3
X-MSMail-priority: Normal
Status:
etc.
Gail Dapogny
1154 Olden Road
Ann Arbor, MI 48103-3005
(734) 665-9816
gdapogny@umich.edu
http://www.silverhawk.com/ex99/dapogny (single historical photo - no longer
registered with Silverhawk)
John Norris on thu 30 jan 03
Gail (and interested others)-
The quick answer is this is the email's "header". It is basically some ba=
ckground
information that records how the email went through the Internet from the=
Sender to the Receiver. It also has a bit about how the content was creat=
ed
and thus can be decoded.
All email has stuff like this. It is not just a Mac thing. If your email=
application is set to not show headers, you may not see it most of it.
Long Answer:
IANANA (I Am Not A Network Admin) but some may find this interesting. We=
communicate with it everyday, and some of this info may come in handy to=
others. The sample Gail included is part of an extended email header.
As the email travels from the Sender to the Receiver, it gets handed off
to different machines, getting closer to its destination. Each of these
machines adds a section, a received line. The received line listed at th=
e
top was from the last machine, the first machine's addition is at the bot=
tom
of the list. So we'll start at the bottom:
***
Received: from computername
(bgp01024299bgs.sanarb01.mi.comcast.net [68.40.84.175])
by mtaout05.icomcast.net
(iPlanet Messaging Server 5.2 HotFix 1.09 (built Jan 7 2003))
with SMTP id <0H9F005C0LK7YX@mtaout05.icomcast.net> for gdapogny@umich.e=
du;
Tue, 28 Jan 2003 10:55:20 -0500 (EST)
Above is the first received line. It shows the email began with a Sender=
at Comcast Cable Communications. It was received by a Comcast email serve=
r
running an application called "IPlanet Messaging Services" (a Sun product=
by the way.) The message is going to gdapogny@umich.edu. It was received
by this first machine on Jan 28, 2003 10:55:20
****
Received: from smtp.comcast.net (smtp.comcast.net [24.153.64.2])
by perfectworld.mr.itd.umich.edu (3.6u) with ESMTP id h0SFtK50209=
2
for ; Tue, 28 Jan 2003 10:55:21 -0500 (EST)
Here's the next received line. This shows a machine "Perfect World" at
the University of Michigan got the email. This is probably the main emai=
l
server at University of Michigan
***
Received: (from daemon@localhost)
by perfectworld.mr.itd.umich.edu (3.6u) with LDAP id h0SFtL602106=
for gdapogny@g.imap.itd.umich.edu; Tue, 28 Jan 2003 10:55:21 -050=
0
(EST)
On this received line, I'm guessing a bit. It looks like the main email
machine at University of Michigan did some background changes to the file=
format so it fits better within their system.
***
Received: from perfectworld.mr.itd.umich.edu (perfectworld.mr.itd.umich.e=
du
[141.211.125.44])
by alien.imap.itd.umich.edu (3.6i) with ESMTP id h0SFtLq29836
for ; Tue, 28 Jan 2003 10:55:21
-0500 (EST)
On the final received line we see what is probably the local mail server
"alien" got the email from the universities main mail server. It got the=
email at 10:55:21, or about 1 second after the first Comcast machine got
it. Gail would have picked it up from this machine.
****
OK, now we get to the part of the header we usually see:
Date: Tue, 28 Jan 2003 10:47:52 -0500
From: Susan Salmeron
Subject: Woman's Joke
****
Now for a bit on what type of email:
Message-id: <001c01c2c6e4$9ec5c700$0300a8c0@computername>
*This is the current message ID. Every email message has a distinct ID.
MIME-version: 1.0
*This tells the Receiver's email application that that attachments (like
pictures) can be decoded using the "MIME" protocol.
X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.170
*This tells the Receiver's email application may also need to use Microso=
ft's
MimeOLE process for decoding it.
X-Mailer: Microsoft Outlook Express 5.50.4807.1700
*This shows the type of application that created the email. Offering a
clue to the Receiver's application as to how to decode it.
Content-type: multipart/alternative;
boundary=3D"Boundary_(ID_AULgA1NQtwj0WOtNQUJWRw)"
*This tells that Receiver's email application that the email is being sen=
t
so that several different application types can open it, say a email read=
er
that can show the message like a web page (with pictures and fancy typefa=
ces,
etc...) or a simple text only reader.
X-Priority: 3
X-MSMail-priority: Normal
*These line tells the Receiver's email application that it should show th=
e
email as "normal" or for other email applications a "3" priority (as oppo=
sed
to "high", "Medium", etc...)
That's about it for this sample.
Hope this helps and that folks find it interesting.
John
*****
Art, Information, and Ceramics.
http://www.john-norris.net
*****
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