Dear Apple,<\/p>\n
please explain why is my computer <\/strong>(added to not be mistaken with the router’s IP)<\/em> LAN IP<\/strong> address showing on the email headers of the mails I send with Mail.app.<\/p>\n Thanks!<\/p>\n Bellow, in red, my computer’s private LAN IP Address. In green my Router’s Public\/WAN IP address which is “normal” to be included on most email headers.<\/p>\n Update:<\/strong> I’ve clarified some descriptions above after some user comments, I realized that It wasn’t clear what IPs I was referring to.<\/p>\n It seems that this is common on most email clients, except for Outlook. This “issue” triggered my attention when I was looking into the mail headers from a mail I sent from Mail.app in response to a mail from Outlook and they were indeed different in this aspect.<\/p>\n The client’s computer Local IP address and the Router’s \/ Firewall \/ Modem \/ whatever public IP address are added by the SMTP Server to the Envelop’s “Received” line, which it probably gets from the EHLO.<\/p>\n Still, this isn’t secure as it allows malicious attackers to map a victims network very easy.<\/p>\n","protected":false},"excerpt":{"rendered":" Dear Apple, please explain why is my computer (added to not be mistaken with the router’s IP) LAN IP address showing on the email headers of the mails I send with Mail.app. Thanks! Bellow, in red, my computer’s private LAN IP Address. In green my Router’s Public\/WAN IP address which is “normal” to be included […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5,10,8],"tags":[],"class_list":["post-917","post","type-post","status-publish","format-standard","hentry","category-apple","category-networking","category-security"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/posts\/917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/comments?post=917"}],"version-history":[{"count":8,"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/posts\/917\/revisions"}],"predecessor-version":[{"id":922,"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/posts\/917\/revisions\/922"}],"wp:attachment":[{"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/media?parent=917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/categories?post=917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.odrakir.com\/blog\/wp-json\/wp\/v2\/tags?post=917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Return-Path: <rsaramago@gmail.com>\r\nReceived: from ?XX.XX.XX.XX?<\/span> (pa6-XX-XX-XXX-XXX.netvisao.pt [XX.XX.XXX.XXX<\/span>])\r\n by mx.google.com with ESMTPS id 7sm502355eyb.8.2009.11.13.01.07.07\r\n (version=TLSv1\/SSLv3 cipher=RC4-MD5);\r\n Fri, 13 Nov 2009 01:07:08 -0800 (PST)\r\nSubject: Teste\r\nMime-Version: 1.0 (Apple Message framework v1077)\r\nContent-Type: multipart\/alternative; boundary=Apple-Mail-1-623152288\r\nFrom: Ricardo Saramago <rsaramago@gmail.com>\r\nTo: Testy McTest <test@test.pt>\r\nX-Mailer: Apple Mail (2.1077)<\/pre>\n