{"id":97285,"date":"2025-10-18T04:35:06","date_gmt":"2025-10-17T23:05:06","guid":{"rendered":"https:\/\/www.seminarsonly.com\/news\/?p=97285"},"modified":"2025-10-18T04:46:05","modified_gmt":"2025-10-17T23:16:05","slug":"mail-delivery-subsystem-scam-how-the-scam-works","status":"publish","type":"post","link":"https:\/\/seminarsonly.com\/news\/mail-delivery-subsystem-scam-how-the-scam-works\/","title":{"rendered":"Mail Delivery Subsystem Scam | How the Scam Works"},"content":{"rendered":"

The “Mail Delivery Subsystem” scam<\/strong> is a phishing or spoofing scheme that exploits automated email bounce messages to trick users into clicking malicious links, downloading malware, or giving up personal information.<\/em> <\/span><\/h3>\n

Here\u2019s a breakdown of how the scam works<\/strong>, what to look out for, and how to protect yourself.<\/p>\n

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\ud83d\udd0d What Is the \u201cMail Delivery Subsystem\u201d Scam?<\/strong><\/span><\/h2>\n

The Mail Delivery Subsystem<\/strong> is a legitimate system used by email servers (like Gmail, Yahoo, Outlook) to notify senders that their email couldn\u2019t be delivered. A typical bounce-back email has a subject like:<\/p>\n

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Mail Delivery Subsystem: Delivery Status Notification (Failure)<\/strong><\/p>\n<\/blockquote>\n

Scammers spoof or fake this kind of message to make it look like it comes from a trusted server, but it actually contains malicious links<\/strong>, attachments<\/strong>, or phishing tactics<\/strong>.<\/p>\n

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\ud83e\udde0 How the Scam Works<\/strong><\/span><\/h2>\n
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  1. \n

    You receive an email<\/strong> that looks like a system-generated bounce-back from an address like:<\/p>\n

    \n
    <\/div>\n
    mailer-daemon@googlemail<\/span>.com
    \npostmaster@mail<\/span>.domain.com
    \n<\/code><\/div>\n<\/div>\n

    (These are often spoofed to look legitimate.)<\/em><\/p>\n<\/li>\n

  2. \n

    The message claims your email couldn\u2019t be delivered. It may include:<\/p>\n