{"id":18968,"date":"2025-12-19T17:14:45","date_gmt":"2025-12-19T17:14:45","guid":{"rendered":"https:\/\/www.mailgun.com\/glossary\/registro-txt-dns\/"},"modified":"2026-09-08T23:25:14","modified_gmt":"2026-09-08T23:25:14","slug":"registro-txt-dns","status":"publish","type":"glossary","link":"https:\/\/www.mailgun.com\/pt\/glossary\/registro-txt-dns\/","title":{"rendered":"Registro TXT de DNS"},"content":{"rendered":"<h1>Registro TXT de DNS<\/h1>\n<p><span data-contrast=\"none\">Um registro TXT (texto) de DNS \u00e9 um tipo de registro do Domain Name System (DNS) usado para armazenar informa\u00e7\u00f5es baseadas em texto. Esses registros podem ser lidos por servi\u00e7os externos para verificar configura\u00e7\u00f5es relacionadas ao dom\u00ednio ou fornecer instru\u00e7\u00f5es, <\/span><span data-contrast=\"none\">principalmente para<\/span><span data-contrast=\"none\"> protocolos de autentica\u00e7\u00e3o de e-mail como <\/span><a href=\"https:\/\/www.mailgun.com\/blog\/deliverability\/spf-records-basics\/?utm_source=google&#038;utm_medium=cpc&#038;utm_campaign=NA%20%7C%20Brand&#038;utm_id=750089235&#038;utm_content=44926653532&#038;utm_term=mailgun%20transactional%20email&#038;gad_source=1&#038;gad_campaignid=750089235&#038;gbraid=0AAAAAofVncceW_Nvx3-twdaDpiReB3GU6&#038;gclid=EAIaIQobChMIyOben_nJkQMVuzYIBR2llSRdEAAYASAAEgJ4evD_BwE\"><span data-contrast=\"none\">SPF<\/span><\/a><span data-contrast=\"none\">,\u00a0<\/span><a href=\"https:\/\/www.mailgun.com\/blog\/deliverability\/understanding-dkim-how-it-works\/\"><span data-contrast=\"none\">DKIM<\/span><\/a><span data-contrast=\"none\"> e \u00a0<\/span><a href=\"https:\/\/www.mailgun.com\/blog\/deliverability\/implement-dmarc\/\"><span data-contrast=\"none\">DMARC<\/span><\/a><span data-contrast=\"none\">.\u00a0<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">No e-mail, os registros TXT de DNS s\u00e3o a forma como os remetentes publicam os dados de autentica\u00e7\u00e3o que os servidores de recebimento de e-mail verificam para confirmar a legitimidade de uma mensagem. Por exemplo:\u00a0<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"45\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Uma pol\u00edtica SPF fica em um registro TXT de DNS.\u00a0<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"45\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Uma chave p\u00fablica DKIM fica em um registro TXT de DNS.\u00a0<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"45\" data-list-defn-props=\"{\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Uma pol\u00edtica DMARC fica em um registro TXT de DNS.\u00a0<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"none\">Os registros TXT n\u00e3o s\u00e3o protocolos de autentica\u00e7\u00e3o em si, mas s\u00e3o o m\u00e9todo de publica\u00e7\u00e3o essencial que faz a autentica\u00e7\u00e3o de e-mail funcionar.<\/span><span data-ccp-props=\"{\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Registro TXT de DNS Um registro TXT (texto) de DNS \u00e9 um tipo de registro do Domain Name System (DNS) usado para armazenar informa\u00e7\u00f5es baseadas em texto. Esses registros podem ser lidos por servi\u00e7os externos para verificar configura\u00e7\u00f5es relacionadas ao dom\u00ednio ou fornecer instru\u00e7\u00f5es, principalmente para protocolos de autentica\u00e7\u00e3o de e-mail como SPF,\u00a0DKIM e \u00a0DMARC.\u00a0\u00a0 [&hellip;]<\/p>\n","protected":false},"author":23,"template":"","meta":{"_acf_changed":false},"class_list":["post-18968","glossary","type-glossary","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Registro TXT de DNS \u2013 Gloss\u00e1rio de termos de e-mail | Mailgun<\/title>\n<meta name=\"description\" content=\"Um registro TXT de DNS \u00e9 um protocolo de autentica\u00e7\u00e3o que verifica a propriedade do dom\u00ednio para outras fontes. 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