{"id":13064,"date":"2025-10-01T02:01:04","date_gmt":"2025-09-30T17:01:04","guid":{"rendered":"https:\/\/m365jp.net\/?p=13064"},"modified":"2025-10-01T02:02:33","modified_gmt":"2025-09-30T17:02:33","slug":"mc1130385-updated-retirement-of-inline-svg-images-in-microsoft-outlook","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-10-01-mc1130385-updated-retirement-of-inline-svg-images-in-microsoft-outlook","title":{"rendered":"MC1130385 | (Updated) Retirement of inline SVG images in Microsoft Outlook"},"content":{"rendered":"
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MC1130385 | (Updated) Retirement of inline SVG images in Microsoft Outlook<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n
Classification<\/th>\nplanForChange<\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/30\/2025 16:33:53<\/td>\n<\/tr>\n
Start Time<\/th>\n08\/06\/2025 23:26:48<\/td>\n<\/tr>\n
End Time<\/th>\n12\/01\/2025 07:00:00<\/td>\n<\/tr>\n
Message Content<\/th>\n\n

Updated September 30, 2025: We have updated the timeline. Thank you for your patience.<\/p>\n

Introduction
<\/b><\/p>\n

We’re retiring support for inline SVG images in Outlook for Web and the new Outlook for Windows starting early September 2025. This change enhances security and aligns with current email client behavior, which already restricts inline SVG rendering. <\/p>\n

When this will happen<\/p>\n

When this will happen<\/b><\/p>\n

<\/b><\/p>\n

    \n
  • Worldwide rollout: Begins early September 2025, expected to complete by mid-September 2025. <\/li>\n
  • GCC, GCC-H, DoD, Gallatin rollout: Begins mid-September 2025, expected to complete by mid-October 2025 (previously late September). <\/li>\n<\/ul>\n

    How this affects your organization
    <\/b><\/p>\n

      \n
    • Inline SVG images will no longer be displayed in Outlook for Web or the new Outlook for Windows. Instead, users will see blank spaces where these images would have appeared. <\/li>\n
    • This change affects less than 0.1% of all images used in Outlook, so impact is expected to be minimal. <\/li>\n
    • SVG images sent as classic attachments will continue to be supported and viewable from the attachment well. <\/li>\n
    • This update helps mitigate potential security risks, such as cross-site scripting (XSS) attacks. <\/li>\n<\/ul>\n

      What you can do to prepare
      <\/b><\/p>\n

      No action is required from users or administrators. <\/p>\n

      We recommend: <\/p>\n

        \n
      • Updating internal documentation to reflect this change. <\/li>\n
      • Informing users who may rely on inline SVGs in email communications. <\/li>\n<\/ul>\n

        Compliance considerations
        <\/b><\/p>\n

        No compliance considerations identified, review as appropriate for your organization.<\/p>\n

        <\/p>\n

        <\/p>\n<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\n

2025 \u5e74 9 \u6708 30 \u65e5\u66f4\u65b0: \u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u66f4\u65b0\u3057\u307e\u3057\u305f\u3002\u304a\u5f85\u3061\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002<\/p>\n

\u7d39\u4ecb<\/b><\/p>\n

2025 \u5e74 9 \u6708\u521d\u65ec\u304b\u3089\u3001Outlook for Web \u3068\u65b0\u3057\u3044 Outlook for Windows \u3067\u306e\u30a4\u30f3\u30e9\u30a4\u30f3 SVG \u753b\u50cf\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u5ec3\u6b62\u3057\u307e\u3059\u3002\u3053\u306e\u5909\u66f4\u306b\u3088\u308a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u3001\u3059\u3067\u306b\u30a4\u30f3\u30e9\u30a4\u30f3 SVG \u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u73fe\u5728\u306e\u96fb\u5b50\u30e1\u30fc\u30eb \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u52d5\u4f5c\u3068\u4e00\u81f4\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u304c\u3044\u3064\u8d77\u3053\u308b\u304b<\/p>\n

\u3053\u308c\u304c\u3044\u3064\u8d77\u3053\u308b\u304b<\/b><\/p>\n

<\/b><\/p>\n

    \n
  • \u5168\u4e16\u754c\u3067\u306e\u5c55\u958b: 2025 \u5e74 9 \u6708\u4e0a\u65ec\u306b\u958b\u59cb\u3055\u308c\u30012025 \u5e74 9 \u6708\u4e2d\u65ec\u307e\u3067\u306b\u5b8c\u4e86\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/li>\n
  • GCC\u3001GCC-H\u3001DoD\u3001Gallatin \u306e\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8: 2025 \u5e74 9 \u6708\u4e2d\u65ec\u306b\u958b\u59cb\u3055\u308c\u30012025 \u5e74 10 \u6708\u4e2d\u65ec (\u4ee5\u524d\u306f 9 \u6708\u4e0b\u65ec) \u307e\u3067\u306b\u5b8c\u4e86\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/li>\n<\/ul>\n

    \u3053\u308c\u304c\u7d44\u7e54\u306b\u4e0e\u3048\u308b\u5f71\u97ff<\/b><\/p>\n

      \n
    • \u30a4\u30f3\u30e9\u30a4\u30f3 SVG \u753b\u50cf\u306f\u3001Outlook for Web \u307e\u305f\u306f\u65b0\u3057\u3044 Outlook for Windows \u306b\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u4ee3\u308f\u308a\u306b\u3001\u3053\u308c\u3089\u306e\u753b\u50cf\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u305f\u306f\u305a\u306e\u7a7a\u767d\u30b9\u30da\u30fc\u30b9\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/li>\n
    • \u3053\u306e\u5909\u66f4\u306f\u3001Outlook \u3067\u4f7f\u7528\u3055\u308c\u308b\u3059\u3079\u3066\u306e\u753b\u50cf\u306e 0.1% \u672a\u6e80\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u305f\u3081\u3001\u5f71\u97ff\u306f\u6700\u5c0f\u9650\u3067\u3042\u308b\u3068\u4e88\u60f3\u3055\u308c\u307e\u3059\u3002<\/li>\n
    • \u30af\u30e9\u30b7\u30c3\u30af\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u9001\u4fe1\u3055\u308c\u305f SVG \u753b\u50cf\u306f\u5f15\u304d\u7d9a\u304d\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u30a6\u30a7\u30eb\u304b\u3089\u8868\u793a\u3067\u304d\u307e\u3059\u3002<\/li>\n
    • \u3053\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306f\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0(XSS)\u653b\u6483\u306a\u3069\u306e\u6f5c\u5728\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<\/ul>\n

      \u6e96\u5099\u3059\u308b\u305f\u3081\u306b\u3067\u304d\u308b\u3053\u3068<\/b><\/p>\n

      \u30e6\u30fc\u30b6\u30fc\u307e\u305f\u306f\u7ba1\u7406\u8005\u304b\u3089\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

      \u304a\u3059\u3059\u3081:<\/p>\n

        \n
      • \u3053\u306e\u5909\u66f4\u3092\u53cd\u6620\u3059\u308b\u3088\u3046\u306b\u5185\u90e8\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u66f4\u65b0\u3057\u307e\u3059\u3002<\/li>\n
      • \u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u3067\u30a4\u30f3\u30e9\u30a4\u30f3 SVG \u306b\u4f9d\u5b58\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u901a\u77e5\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n

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        \u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805\u304c\u7279\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u7d44\u7e54\u306b\u5fdc\u3058\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n

        <\/p>\n

        <\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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