{"id":3799,"date":"2026-07-22T16:15:19","date_gmt":"2026-07-22T16:15:19","guid":{"rendered":"https:\/\/disoh.com\/support\/what-is-dkim-and-how-to-set-it-up-for-your-domain\/"},"modified":"2026-07-22T16:15:19","modified_gmt":"2026-07-22T16:15:19","password":"","slug":"o-que-e-o-dkim-e-como-configura-lo-para-o-seu-dominio","status":"publish","type":"docs","link":"https:\/\/disoh.com\/pt\/support\/what-is-dkim-and-how-to-set-it-up-for-your-domain\/","title":{"rendered":"O que \u00e9 o DKIM e como configur\u00e1-lo para o seu dom\u00ednio"},"content":{"rendered":"<p>O DKIM (DomainKeys Identified Mail) \u00e9 um m\u00e9todo de autentica\u00e7\u00e3o de e-mail que adiciona uma assinatura digital a todas as mensagens enviadas pelo seu dom\u00ednio. Os servidores de e-mail receptores usam essa assinatura para confirmar que a mensagem realmente veio do seu dom\u00ednio e n\u00e3o foi alterada durante o trajeto. Juntamente com o SPF e o DMARC, o DKIM \u00e9 um dos pilares de uma boa capacidade de entrega de e-mails e uma defesa robusta contra a falsifica\u00e7\u00e3o de identidade.<\/p>\n<h2>Como funciona o DKIM, em termos simples<\/h2>\n<p>O DKIM se baseia em um par de chaves criptogr\u00e1ficas. Uma chave privada fica no seu servidor de e-mail e assina suas mensagens enviadas, enquanto uma chave p\u00fablica correspondente \u00e9 publicada no DNS do seu dom\u00ednio como um registro TXT. Quando seu e-mail chega, o servidor de destino consulta a chave p\u00fablica, verifica a assinatura e confirma se a mensagem \u00e9 aut\u00eantica e n\u00e3o foi alterada. Se a verifica\u00e7\u00e3o for bem-sucedida, \u00e9 muito mais prov\u00e1vel que seu e-mail seja considerado confi\u00e1vel.<\/p>\n<h2>Por que voc\u00ea deve ativar o DKIM<\/h2>\n<ul>\n<li><strong>Melhor posicionamento na caixa de entrada:<\/strong> E-mails assinados t\u00eam menos chances de serem considerados spam.<\/li>\n<li><strong>Prote\u00e7\u00e3o contra adultera\u00e7\u00f5es:<\/strong> A assinatura comprova que a mensagem n\u00e3o foi alterada.<\/li>\n<li><strong>Reputa\u00e7\u00e3o:<\/strong> Isso fortalece a reputa\u00e7\u00e3o de envio do seu dom\u00ednio ao longo do tempo.<\/li>\n<li><strong>Obrigat\u00f3rio para o DMARC:<\/strong> \u00c9 necess\u00e1rio que o DKIM (ou SPF) esteja alinhado para que o DMARC funcione plenamente.<\/li>\n<\/ul>\n<h2>Como configurar o DKIM<\/h2>\n<p>A boa not\u00edcia \u00e9 que a maioria dos pain\u00e9is de controle de hospedagem modernos pode gerar a chave DKIM para voc\u00ea, de modo que raramente \u00e9 necess\u00e1rio lidar com a criptografia por conta pr\u00f3pria. O processo geral \u00e9 o seguinte:<\/p>\n<ul>\n<li>Fa\u00e7a login no seu painel de controle e abra o <strong>E-mail<\/strong> ou <strong>Autentica\u00e7\u00e3o<\/strong> se\u00e7\u00e3o.<\/li>\n<li>Ative o DKIM para o seu dom\u00ednio. O painel gera o par de chaves automaticamente.<\/li>\n<li>Se o seu DNS for gerenciado pelo mesmo provedor, o registro TXT geralmente \u00e9 adicionado automaticamente para voc\u00ea.<\/li>\n<li>Se o seu DNS estiver hospedado em outro lugar, copie o registro TXT do DKIM exibido e adicione-o no seu gerenciador de DNS.<\/li>\n<li>Salve e aguarde o tempo necess\u00e1rio para a propaga\u00e7\u00e3o.<\/li>\n<\/ul>\n<h2>Verificando se o DKIM est\u00e1 funcionando<\/h2>\n<p>Ap\u00f3s a propaga\u00e7\u00e3o, envie um e-mail de teste para um endere\u00e7o sob seu controle e verifique os cabe\u00e7alhos da mensagem, ou utilize um verificador DKIM online gratuito. Um resultado positivo confirma que sua assinatura \u00e9 v\u00e1lida. Se voc\u00ea utilizar um servi\u00e7o de e-mail externo, siga as instru\u00e7\u00f5es espec\u00edficas de DKIM fornecidas por ele, j\u00e1 que o nome e o valor do registro s\u00e3o exclusivos para cada provedor.<\/p>\n<h2>Solu\u00e7\u00e3o de problemas<\/h2>\n<ul>\n<li><strong>Falha na verifica\u00e7\u00e3o do DKIM:<\/strong> Confirme se o registro TXT foi copiado exatamente, sem nenhum caractere faltando.<\/li>\n<li><strong>Sem assinatura nas correspond\u00eancias enviadas:<\/strong> Certifique-se de que o DKIM esteja ativado no servidor de envio.<\/li>\n<li><strong>Como usar v\u00e1rios remetentes:<\/strong> Cada servi\u00e7o precisa de seu pr\u00f3prio registro DKIM com seu pr\u00f3prio seletor.<\/li>\n<\/ul>\n<h2>Precisa de ajuda?<\/h2>\n<p>Caso a valida\u00e7\u00e3o do DKIM n\u00e3o esteja ocorrendo, nossa equipe de suporte pode ajud\u00e1-lo a verificar a chave e o registro DNS por meio do chat ao vivo.<\/p>","protected":false},"excerpt":{"rendered":"<p>DKIM (DomainKeys Identified Mail) is an email authentication method that adds a digital signature to every message your domain sends. Receiving mail servers use that signature to confirm the message really came from your domain and was not altered along the way. Together with SPF and DMARC, DKIM is one of the pillars of good [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[13],"doc_tag":[],"class_list":["post-3799","docs","type-docs","status-publish","hentry","doc_category-domains"],"year_month":"2026-09","word_count":417,"total_views":"151","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Jorn","author_nicename":"jorn","author_url":"https:\/\/disoh.com\/pt\/author\/jorn\/"},"doc_category_info":[{"term_name":"Domains","term_url":"https:\/\/disoh.com\/pt\/docs-category\/domains\/"}],"doc_tag_info":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is DKIM and How to Set It Up for Your Domain &#8211; Disoh<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/disoh.com\/pt\/suporte\/o-que-e-o-dkim-e-como-configura-lo-para-o-seu-dominio\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is DKIM and How to Set It Up for Your Domain &#8211; Disoh\" \/>\n<meta property=\"og:description\" content=\"DKIM (DomainKeys Identified Mail) is an email authentication method that adds a digital signature to every message your domain sends. 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