{"id":2318,"date":"2023-03-14T18:06:59","date_gmt":"2023-03-14T17:06:59","guid":{"rendered":"https:\/\/support.pt.lu\/?page_id=2318"},"modified":"2023-03-15T10:29:24","modified_gmt":"2023-03-15T09:29:24","slug":"spf","status":"publish","type":"page","link":"https:\/\/support.pt.lu\/fr\/spf\/","title":{"rendered":"SPF"},"content":{"rendered":"<p><strong><em><a href=\"https:\/\/en.wikipedia.org\/wiki\/Sender_Policy_Framework\" target=\"_blank\" rel=\"noopener\">Sender Policy Framework<\/a><\/em><\/strong> (SPF) is an authentication protocol that lists IP addresses in a DNS TXT record that are authorized to send email on behalf of domains.<\/p>\n<p>A typical SPF record looks like this:<\/p>\n<p><em>&#xAB;&#xA0;v=spf1 a include:spf.hostpack.lu. ~all&#xA0;&#xBB;<\/em><\/p>\n<p>The corresponding DNS TXT entry may look like the following (applied to domain-name.lu):<\/p>\n<p><em>domain-name.lu. 600 IN TXT &#xAB;&#xA0;v=spf1 a include:spf.hostpack.lu. ~all&#xA0;&#xBB;<\/em><\/p>\n<p>If you would send an email message using domain-name.lu, the receiving system would check to see if there is an SPF record published:<\/p>\n<ul>\n<li>If there is a valid SPF record AND your sending IP address is on the list, your message will PASS the SPF check.<\/li>\n<li>If your sending IP address is NOT on the list, your message will FAIL the SPF check and could either be rejected, quarantined or classified as SPAM &#x2013; depending on the receiving system&#x2019;s email policy.<\/li>\n<\/ul>\n<p>Unfortunately, SPF authentication has some limitations in terms of validating the message source.<\/p>\n<p>SPF also breaks when a message is forwarded and does not protect against bad actors who can spoof the display name or Friendly-From address.<\/p>\n<p>These limitations are some of the reasons why <a href=\"https:\/\/support.pt.lu\/dkim\/\">DKIM<\/a> was created.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sender Policy Framework (SPF) is an authentication protocol that lists IP addresses in a DNS TXT record that are authorized to send email on behalf of domains. A typical SPF record looks like this: &#xAB;&#xA0;v=spf1 a include:spf.hostpack.lu. ~all&#xA0;&#xBB; The corresponding DNS TXT entry may look like the following (applied to domain-name.lu): domain-name.lu. 600 IN TXT &#x2026; <a href=\"https:\/\/support.pt.lu\/fr\/spf\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">SPF<\/span>  <span class=\"meta-nav\">&#x2192;<\/span><\/a><\/p>\n","protected":false},"author":14,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2318","page","type-page","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"fr","enabled_languages":["en","de","fr"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/pages\/2318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/comments?post=2318"}],"version-history":[{"count":12,"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/pages\/2318\/revisions"}],"predecessor-version":[{"id":2371,"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/pages\/2318\/revisions\/2371"}],"wp:attachment":[{"href":"https:\/\/support.pt.lu\/fr\/wp-json\/wp\/v2\/media?parent=2318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}