{"id":30,"date":"2026-09-28T12:12:51","date_gmt":"2026-09-28T09:12:51","guid":{"rendered":"https:\/\/mx1mail.com\/blog\/what-is-email-deliverability\/"},"modified":"2026-09-28T12:12:51","modified_gmt":"2026-09-28T09:12:51","slug":"what-is-email-deliverability","status":"publish","type":"post","link":"https:\/\/mx1mail.com\/blog\/en\/what-is-email-deliverability\/","title":{"rendered":"What Is Email Deliverability and Why Does It Matter?"},"content":{"rendered":"<p>Email deliverability describes the ability of a message not only to reach the receiving mail server, but also to arrive successfully in the recipient&#8217;s inbox.<\/p>\n<h2>Delivery and deliverability are different<\/h2>\n<p>A server accepting a message does not guarantee inbox placement. The receiving system may still place it in spam or apply additional filtering.<\/p>\n<h2>Sender reputation<\/h2>\n<p>The historical behavior of the sending IP address and domain can influence how mailbox providers evaluate new messages.<\/p>\n<h2>SPF, DKIM and DMARC<\/h2>\n<p>Correct authentication records help receiving systems verify that the message originated from an authorized source.<\/p>\n<h2>List quality and sending behavior<\/h2>\n<p>Repeated delivery attempts to invalid addresses, high complaint rates and sudden volume changes can negatively affect deliverability.<\/p>\n<h2>Content matters too<\/h2>\n<p>Misleading subject lines, suspicious links and overly aggressive marketing language may increase filtering risk.<\/p>\n<p>Learn more in our <a href=\"https:\/\/mx1mail.com\/blog\/en\/what-are-spf-dkim-and-dmarc\/\">SPF, DKIM and DMARC guide<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn what email deliverability means and how sender reputation, authentication and sending behavior influence inbox placement.<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[131,116],"class_list":["post-30","post","type-post","status-publish","format-standard","hentry","category-deliverability","tag-email-deliverability","tag-email-security"],"_links":{"self":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts\/30","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/comments?post=30"}],"version-history":[{"count":0,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts\/30\/revisions"}],"wp:attachment":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/media?parent=30"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/categories?post=30"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/tags?post=30"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}