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Thread: Content-Type: image/png; not visible

  1. #1
    Join Date
    Dec 2007
    Posts
    238
    Rep Power
    7

    Default Content-Type: image/png; not visible

    I'm responsible for filtering our spam queue and we get a load of image only emails although I just delete them I noticed that emails like this with Content-Type: image/png; do not have an attachment shown (there is an paper clip in the list view) whereas Content-Type: image/jpg; are shown. Not a problem until we get a legitimate image only email with an Content-Type: image/png. In the png email Zimbra seems to know an attachment is there because of the paper clip and you get the "Attachments:" label under the "To:" but no attachment name, size, download or add to briefcase is displayed. Censored Headers;

    Return-path: <turbo@yatesport.es>
    Envelope-to: system-filter
    Delivery-date: Fri, 22 May 2009 15:09:16 +0100
    Received: from [87.235.67.139] (helo=yunpk.comunitel.net)
    by xxxxx with smtp (Exim 4.66)
    (envelope-from <turbo@yatesport.es>)
    id 1M7VQr-0007cE-8W
    for xxxxxxx; Fri, 22 May 2009 15:09:16 +0100
    Date: Fri, 22 May 2009 14:09:30 +0000
    From: "Gulbraa Gilio" <turbo@yatesport.es>
    To: xxxxxx
    Message-ID: <18AFACA220@yatesport.es>
    X-Mailer: PHP v5.1.5
    MIME-Version: 1.0
    Content-Type: multipart/related;
    boundary="-5E91D71267EFCAE078F517_hA8G2CfGhwVi6"
    Xlocal-Spam-Subject: **Possible Spam** (score: 3.7) Erotic Sensual Massage - Bring Anll Your Senses Together
    Xlocal-Spam-Score: 3.7 (+++)
    Xlocal-Spam-Report: Spam detection software, running on the system "xxxxx", has
    examined this mail, a preview is shown below. If you have any questions, see
    the administrator of that system for details.
    Content preview: [...]
    Content analysis details: (3.7 points, 2.2 required)
    pts rule name description
    ---- ---------------------- --------------------------------------------------
    0.1 HTML_90_100 BODY: Message is 90% to 100% HTML
    0.0 HTML_MESSAGE BODY: HTML included in message
    0.0 BAYES_50 BODY: Bayesian spam probability is 40 to 60%
    [score: 0.4669]
    0.0 MIME_HTML_ONLY BODY: Message only has text/html MIME parts
    3.6 HTML_IMAGE_ONLY_04 BODY: HTML: images with 0-400 bytes of words
    Xlocal-Spam-Flag: YES
    Subject: **Possible Spam** (score: 3.7) Erotic Sensual Massage - Bring Anll Your Senses Together

    ---5E91D71267EFCAE078F517_hA8G2CfGhwVi6
    Content-Type: text/html; charset=ISO-8859-1
    Content-Transfer-Encoding: 7bit

    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
    <head>
    </head>
    <body bgcolor="#ffffff" text="#000000">
    <img src="impertinency.png">
    </body>
    </html>

    ---5E91D71267EFCAE078F517_hA8G2CfGhwVi6
    Content-Type: image/png;
    name="impertinency.png"
    Content-Transfer-Encoding: base64

    iVBORw0KGgoAAAANSUhEUgAAAVEAAAGYCAMAAADMTyEMAAAABG dBTUEAAK/INwWK6QAAABl0RVh0
    U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAADAUExURb bc9bautsnEqLtzc/bq1Ne5t25q
    T1JNMpgtLfT49J2dim9vb6fCramqnOLl44MDDqZQVs+jkjoxDl hYWOnr6Nf.....

  2. #2
    Join Date
    Dec 2007
    Posts
    238
    Rep Power
    7

    Default

    Here is one but this time the paper clip is not shown in the list view, it usually is, headers;

    Return-path: <emblazon@pacifica.org.nz>
    Envelope-to: system-filter
    Delivery-date: Thu, 28 May 2009 14:25:52 +0100
    Received: from [89.131.198.238] (helo=bibq.omfg.com)
    by xxxxxxx with smtp (Exim 4.66)
    (envelope-from <emblazon@pacifica.org.nz>)
    id 1M9fc5-0003V6-Mo
    for xxxxxxxx; Thu, 28 May 2009 14:25:52 +0100
    X-Mailer: PHP/4.4.6
    Content-Type: multipart/mixed;
    boundary="-----iTQRStObkN"
    From: "Bonus"<emblazon@pacifica.org.nz>
    Date: Thu, 28 May 2009 13:25:51 +0000
    Message-ID: <1vOZOlErKt9Z1173246276X9@dotkcom.be>
    MIME-Version: 1.0
    To: xxxxxxx
    Xlocal-Spam-Subject: **Possible Spam** (score: 2.5) Sermon Promppts Tips That Leads to Arrest
    Xlocal-Spam-Score: 2.5 (++)
    Xlocal-Spam-Report: Spam detection software, running on the system "xxxxxxx", has
    examined this mail, a preview is shown below. If you have any questions, see
    the administrator of that system for details.
    Content preview: [...]
    Content analysis details: (2.5 points, 2.2 required)
    pts rule name description
    ---- ---------------------- --------------------------------------------------
    0.3 NO_REAL_NAME From: does not include a real name
    -0.1 BAYES_40 BODY: Bayesian spam probability is 20 to 40%
    [score: 0.3364]
    2.3 EMPTY_MESSAGE Message appears to have no textual parts and no
    Subject: text
    Xlocal-Spam-Flag: YES
    Subject: **Possible Spam** (score: 2.5) Sermon Promppts Tips That Leads to Arrest

    -------iTQRStObkN
    Content-Type: image/png;
    name="clamant.png"
    Content-Transfer-Encoding: base64

    iVBORw0KGgoAAAANSUhEUgAAAWMAAAF/CAMAAACrCFgzAAAABGdBTUEAAK/INwWK6QAAABl0RVh0
    U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAADAUExURQ 83F9BfXHWRr/Hq1NHS0vfz9uat
    r2lpaVBrVCdGLOjl5oaTiaTDrb7BvlVVVbQQBv7NzNqMireqv6 Kqo/ft8+Hf4XaDePfi6Jejmeu9.....
    Attached Images Attached Images

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