{"id":32,"date":"2021-04-05T10:26:00","date_gmt":"2021-04-05T04:56:00","guid":{"rendered":"http:\/\/signals.dmarcsonar.com\/?p=32"},"modified":"2023-04-06T01:22:52","modified_gmt":"2023-04-05T19:52:52","slug":"mail-from-and-from-header","status":"publish","type":"post","link":"https:\/\/www.tikaj.com\/blog\/mail-from-and-from-header\/","title":{"rendered":"&#8220;Mail from&#8221; and &#8220;From&#8221; header"},"content":{"rendered":"\n<p><strong>In simple terms&nbsp;<\/strong><br>MAIL FROM &#8211; Mr.Blue used XYZ post office to send a mail envelope to Mr.Red, and if Mr.Red&#8217;s post office cant locate Mr. Red then the envelope can be sent back to XYZ Post office to be returned to Mr.Blue<br>FROM &#8211; This message is FROM Mr.Blue to Mr. Red (Receiver).<br><br><strong>Now the technical stuff:<\/strong><br>Like the mail envelope which contains the message, An email envelope also contains a message.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The email envelope will have three pieces of identification information, the host greeting, the &#8220;MAIL FROM:&#8221; return address and the &#8220;RCPT TO:&#8221; list of recipient addresses.<\/li>\n\n\n\n<li>The message content comprises a set of header fields and a body. The body, in turn can be simple text or can be a structured, multi-media &#8220;MIME&#8221; object of attachments. The set of header fields can be quite extensive, but typically at least include: &#8220;Subject:&#8221; &#8220;Date:&#8221; the &#8220;To:&#8221; and &#8220;From:&#8221;.<\/li>\n<\/ul>\n\n\n\n<p>The &#8220;MAIL FROM&#8221; command specifies the address of the recipient for return notices if any problems occur with the delivery of the message, such as non-delivery notices.<\/p>\n\n\n\n<p>The &#8220;From:&#8221; header field indicates who is the author of the message.<br>The technical notation for referring to components of email information is: RFC5321.MailFrom and RFC5322.From according to the IETF RFCs where the field is defined and the specific field being referenced.<\/p>\n\n\n\n<p>All this information can be spoofed. <a href=\"https:\/\/www.tikaj.com\/solutions\/dmarc-plus\/\">DMARC protects the domain name<\/a> of the <a href=\"https:\/\/tools.ietf.org\/html\/rfc5322\" target=\"_blank\" rel=\"noreferrer noopener\">RFC5322<\/a>:From field against spoofing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In simple terms&nbsp;MAIL FROM &#8211; Mr.Blue used XYZ post office to send a mail envelope to Mr.Red, and if Mr.Red&#8217;s post office [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":333,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"footnotes":""},"categories":[6,41,88],"tags":[],"class_list":["post-32","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dmarc","category-email-spam","category-phishing-email"],"_links":{"self":[{"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/posts\/32","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/comments?post=32"}],"version-history":[{"count":6,"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/posts\/32\/revisions"}],"predecessor-version":[{"id":6103,"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/posts\/32\/revisions\/6103"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/media\/333"}],"wp:attachment":[{"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/media?parent=32"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/categories?post=32"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tikaj.com\/wp-json\/wp\/v2\/tags?post=32"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}