{"id":43598,"date":"2024-06-07T16:34:14","date_gmt":"2024-06-07T20:34:14","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=43598"},"modified":"2025-04-22T13:15:18","modified_gmt":"2025-04-22T17:15:18","slug":"apple-mails-broken-block-all-remote-content","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2024\/06\/07\/apple-mails-broken-block-all-remote-content\/","title":{"rendered":"Apple Mail&rsquo;s Broken &ldquo;Block All Remote Content&rdquo;"},"content":{"rendered":"<p><a href=\"https:\/\/lapcatsoftware.com\/articles\/2024\/6\/2.html\">Jeff Johnson<\/a> (<a href=\"https:\/\/mastodon.social\/@lapcatsoftware\/112558597325906862\">Mastodon<\/a>):<\/p>\n<blockquote cite=\"https:\/\/lapcatsoftware.com\/articles\/2024\/6\/2.html\"><p>Mail app on macOS has a privacy setting Block All Remote Content that prevents downloaded emails from connecting to the internet. For example, HTML emails frequently include image links, which can be used for tracking: when the image is loaded from a remote server, the owner of the server knows that you&rsquo;ve opened the email! Block All Remote Content is supposed to prevent this kind of tracking, and it did&#8230; until macOS Sonoma.<\/p>\n<p>[&#8230;]<\/p>\n<p>The remote connection attempt doesn&rsquo;t occur when I open the email. [&#8230;] In this case, the remote connection attempt occurred when I opened Mail app itself and the new email was downloaded.<\/p>\n<\/blockquote>\n\n<p>What would we do without Little Snitch?<\/p>\n\n<p id=\"apple-mails-broken-block-all-remote-content-update-2025-04-22\">Update (<a href=\"#apple-mails-broken-block-all-remote-content-update-2025-04-22\">2025-04-22<\/a>): <a href=\"https:\/\/mastodon.social\/@frijole\/114381247597601682\">frijole<\/a>:<\/p>\n<blockquote cite=\"https:\/\/mastodon.social\/@frijole\/114381247597601682\">\n<p>When I reported the issue with Mail not blocking remote content last year they directed me to the security site instead of regular feedback, then a couple months ago they gave me a bug bounty and the fix went out in 15.4<\/p>\n<\/blockquote>\n\n<p>Looks like this was CVE-2025-24172.<\/p>\n\n<p>Previously:<\/p>\n<ul>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2025\/03\/31\/macos-15-4\/\">macOS 15.4<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Jeff Johnson (Mastodon): Mail app on macOS has a privacy setting Block All Remote Content that prevents downloaded emails from connecting to the internet. For example, HTML emails frequently include image links, which can be used for tracking: when the image is loaded from a remote server, the owner of the server knows that you&rsquo;ve [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2024-06-07T20:34:17Z","apple_news_api_id":"6dd3aeaa-2323-4857-a0fa-7ffd958cdea3","apple_news_api_modified_at":"2025-04-22T17:15:20Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAAAQ==","apple_news_api_share_url":"https:\/\/apple.news\/AbdOuqiMjSFeg-n_9lYzeow","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[126,2098,131,150,139,30,2385,355,356,1102],"class_list":["post-43598","post","type-post","status-publish","format-standard","hentry","category-technology","tag-applemail","tag-apple-security-bounty","tag-bug","tag-email","tag-littlesnitch","tag-mac","tag-macos-14-sonoma","tag-privacy","tag-spam","tag-web-bugs"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/43598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=43598"}],"version-history":[{"count":3,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/43598\/revisions"}],"predecessor-version":[{"id":47450,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/43598\/revisions\/47450"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=43598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=43598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=43598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}