Difference between revisions of "Yahoo! Mail Header Format"

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(New page: <pre> X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 962998.62607.bm@rrr1.mail.re1.yahoo.com Received: (qmail 22781 invoked by uid 60001); 28 Jul 2007 10:13:23 -0000 DomainKey-Signatu...)
 
 
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The '''Yahoo! Web Mail''' header format has changed over time, but currently includes the [[IP addresses in webmail messages|sender's IP address]], a domain key signature, and some other helpful information.
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DomainKey-Signature
 
<pre>
 
<pre>
X-Yahoo-Newman-Property: ymail-3
 
X-Yahoo-Newman-Id: 962998.62607.bm@rrr1.mail.re1.yahoo.com
 
Received: (qmail 22781 invoked by uid 60001); 28 Jul 2007 10:13:23 -0000
 
 
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
 
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
 
   s=s1024; d=yahoo.com;
 
   s=s1024; d=yahoo.com;
 
   h=Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID;
 
   h=Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID;
 
   b=ql3kRKrhner1LTFFVBgCYI1uqK4+8hrb6d/Fefr/HkLuObQwIrIpEXA1OiagbuFZU+H+ue1anFvm1cHQ4hjpdUcjpIIPL7ldNL9YnOxauugdVW+
 
   b=ql3kRKrhner1LTFFVBgCYI1uqK4+8hrb6d/Fefr/HkLuObQwIrIpEXA1OiagbuFZU+H+ue1anFvm1cHQ4hjpdUcjpIIPL7ldNL9YnOxauugdVW+
OpbTvAu0XaGf2t7eBqOWJF0Y5gM7TE27WdElgVRikunfCQca1VFV6KSuQP0o=;
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  OpbTvAu0XaGf2t7eBqOWJF0Y5gM7TE27WdElgVRikunfCQca1VFV6KSuQP0o=;
Received: from [255.255.255.255] by web45214.mail.sp1.yahoo.com via HTTP; Sat, 28 Jul 2007 03:13:23 PDT
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</pre>
Date: Sat, 28 Jul 2007 03:13:23 -0700 (PDT)
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From: Username <username@sendinghost.com>
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Here is a sample mail header. Note that the 'date' field will change from (PDT) to (PST) depending on the status of daylight savings time in California, USA. The sender's IP address is represented as a.b.c.d in the example below.
Subject: header test
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To: Username <username@receivinghost.com>
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Mail Header
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<pre>
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Received: from [a.b.c.d] by web53409.mail.re2.yahoo.com via HTTP; Sat, 14 Feb 2009 05:42:03 PST
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X-Mailer: YahooMailWebService/0.7.260.1
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Date: Sat, 14 Feb 2009 05:42:03 -0800 (PST)
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From: Sender Name <sender@yahoo.com>
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Reply-To: sender@yahoo.com
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Subject: Test Message
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To: recipient@domain.com
 
MIME-Version: 1.0
 
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="0-557670082-1185617603=:22564"
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Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 8bit
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Message-ID: <695976.86300.qm@web53409.mail.re2.yahoo.com>
Message-ID: <244695.22564.qm@web45214.mail.sp1.yahoo.com>
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</pre>
 
</pre>
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== Message IDs ==
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The Message-ID header in yahoo emails is a good identifier for the device that sent the message. Below are some samples:
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Sent via Yahoo!® Mail for Android application on Android (Jelly Bean):
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<pre>Message-ID: <1332714176.54741.androidMobile@web141101.mail.bf1.yahoo.com></pre>
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Sent via Yahoo Webmail from Chrome:
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<pre>Message-ID: <1332793663.59921.YahooMailNeo@web121601.mail.bf1.yahoo.com></pre>
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Sent via Android browser on via mobile webmail interface:
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<pre>Message-ID: <1332792527.64712.BPMail_high_noncarrier@web121601.mail.bf1.yahoo.com></pre>
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Sent via Android email application configured for SMTP (jelly bean):
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<pre>Message-ID: <gf4yxl2u7us2lp89xkgbty9u.1342797846221@email.android.com></pre>
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Sent via iPod (IOS 5.0.1)
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<pre>Message-ID: <1341798412.80181.YahooMailMobile@web124306.mail.ne1.yahoo.com></pre>
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[[Category:Email Analysis]]

Latest revision as of 00:29, 23 July 2012

The Yahoo! Web Mail header format has changed over time, but currently includes the sender's IP address, a domain key signature, and some other helpful information.

DomainKey-Signature

DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=yahoo.com;
  h=Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID;
  b=ql3kRKrhner1LTFFVBgCYI1uqK4+8hrb6d/Fefr/HkLuObQwIrIpEXA1OiagbuFZU+H+ue1anFvm1cHQ4hjpdUcjpIIPL7ldNL9YnOxauugdVW+
  OpbTvAu0XaGf2t7eBqOWJF0Y5gM7TE27WdElgVRikunfCQca1VFV6KSuQP0o=;

Here is a sample mail header. Note that the 'date' field will change from (PDT) to (PST) depending on the status of daylight savings time in California, USA. The sender's IP address is represented as a.b.c.d in the example below.

Mail Header

Received: from [a.b.c.d] by web53409.mail.re2.yahoo.com via HTTP; Sat, 14 Feb 2009 05:42:03 PST
X-Mailer: YahooMailWebService/0.7.260.1
Date: Sat, 14 Feb 2009 05:42:03 -0800 (PST)
From: Sender Name <sender@yahoo.com>
Reply-To: sender@yahoo.com
Subject: Test Message
To: recipient@domain.com
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Message-ID: <695976.86300.qm@web53409.mail.re2.yahoo.com>


Message IDs

The Message-ID header in yahoo emails is a good identifier for the device that sent the message. Below are some samples:

Sent via Yahoo!® Mail for Android application on Android (Jelly Bean):

Message-ID: <1332714176.54741.androidMobile@web141101.mail.bf1.yahoo.com>

Sent via Yahoo Webmail from Chrome:

Message-ID: <1332793663.59921.YahooMailNeo@web121601.mail.bf1.yahoo.com>

Sent via Android browser on via mobile webmail interface:

Message-ID: <1332792527.64712.BPMail_high_noncarrier@web121601.mail.bf1.yahoo.com>

Sent via Android email application configured for SMTP (jelly bean):

Message-ID: <gf4yxl2u7us2lp89xkgbty9u.1342797846221@email.android.com>

Sent via iPod (IOS 5.0.1)

Message-ID: <1341798412.80181.YahooMailMobile@web124306.mail.ne1.yahoo.com>