--- title: "Formato de registro SPF: um guia completo para configuração de DNS | AutoSPF" description: "Entenda o formato do registro SPF - versão, mecanismos, qualificadores e modificadores. Aprenda a estruturar seu registro SPF TXT para uma autenticação de e-mail correta." image: "https://autospf.com/images/og-default.png" canonical: "https://autospf.com/pt/formato-de-registro-spf/" --- Referência completa # Formato de registro SPF Um guia de referência completo sobre o formato do registro Sender Policy Framework - mecanismos, qualificadores, modificadores e exemplos do mundo real, como [um exemplo de registro SPF](/pt/exemplo-de-registro-spf/) que você pode copiar. Compatível com a RFC 7208 Estrutura do registro ## Anatomia de um registro SPF `v=spf1 ip4:192.0.2.1 include:_spf.google.com -all` v=spf1 Versão ip4:192.0.2.1 Mecanismo include:... Mecanismo \-all Qualificador + catch-all Blocos de construção ## Mecanismos Os mecanismos definem quais servidores estão autorizados a enviar e-mails em nome do seu domínio e aparecem em todos os [tipos de registro SPF](/blog/complete-guide-to-spf-record-types-6-variations-explained-simply/). Cada mecanismo conta para o limite de 10 consultas DNS (exceto `ip4`, `ip6` e `all`). | Mecanismo | Exemplo | Descrição | Consulta DNS? | | --------- | --------------------------- | -------------------------------------------------------------------------- | ------------- | | ip4 | ip4:192.0.2.0/24 | Autoriza um endereço IPv4 específico ou uma faixa CIDR | Não | | ip6 | ip6:2001:db8::/32 | Autoriza um endereço ou faixa IPv6 específico | Não | | a | a | Autoriza os endereços IP do registro A do domínio | Sim | | mx | mx | Autoriza os servidores de e-mail do registro MX do domínio | Sim | | include | include:\_spf.google.com | Referencia o registro SPF de outro domínio | Sim | | all | \-all | Mecanismo catch-all - corresponde a tudo o que não foi correspondido antes | Não | | exists | exists:%{i}.spf.example.com | Verifica se existe um registro DNS A (usado em macros SPF) | Sim | | ptr | ptr | Verificação de DNS reverso (obsoleto - não use) | Sim | Tipos de ação ## Qualificadores Os qualificadores são prefixados aos mecanismos e informam ao servidor de destino qual ação tomar quando ocorre uma correspondência - o cerne de [como o SPF protege seu domínio](/blog/what-spf-records-are-and-how-they-protect-email-domains/). Se nenhum qualificador for especificado, `+` (Pass) é o padrão. + ### Pass Aceita o e-mail. O remetente está autorizado. \- ### Fail Rejeita o e-mail. O remetente não está autorizado. \~ ### Soft Fail Aceita, mas marca como suspeito. Use durante os testes. ? ### Neutral Sem asserção. Trata como se não houvesse política SPF. Opções avançadas ## Modificadores ### redirect= Direciona o processamento do SPF para o registro SPF de outro domínio. Substitui totalmente a política do domínio atual. `v=spf1 redirect=_spf.example.com` ### exp= Fornece uma mensagem de explicação personalizada quando uma verificação de SPF falha. Útil para diagnósticos. `v=spf1 ... -all exp=explain._spf.example.com` Exemplos do mundo real ## Exemplos comuns de registro SPF ### Básico - IP único `v=spf1 ip4:192.0.2.1 -all` ### Google Workspace + seu servidor `v=spf1 ip4:192.0.2.1 include:_spf.google.com -all` ### Google + Microsoft 365 `v=spf1 include:_spf.google.com include:spf.protection.outlook.com -all` ### Registros A + MX com soft fail `v=spf1 a mx include:_spf.google.com ~all` Práticas recomendadas ## Boas práticas - Nunca use `+all` \- ele autoriza todos os servidores da internet - Mantenha as consultas DNS abaixo de 10 - use SPF flattening se necessário - Revise e atualize regularmente seu registro SPF ao trocar de provedor de e-mail - Teste seu registro após cada alteração com uma ferramenta de SPF checker - Evite o mecanismo obsoleto `ptr` - Prefira `-all` (hard fail) a `~all` depois de verificar todas as fontes de envio ## Não gerencie registros SPF manualmente O AutoSPF achata e otimiza automaticamente o formato do seu registro SPF. A configuração leva 60 segundos. [Iniciar teste gratuito→](https://subscriptions.zoho.com/subscribe/31162770c20bc42aba9c86185ed6106a6a2bba0f6b053217ad482bf477cf719e/smb%5F1)[Ver planos e preços](/pt/precos/) Rated 5/5 on G2 · Trusted since 2018 ## What Our Customers Say ### "AutoSPF Flattens SPF Records Seamlessly & Keeps Changes Logged - I am quite pleased with the product" > It does what it promises to do, and does it very well. I appreciate that it keeps a log of changes made, which prevents many mistakes. A client's SPF record would have way too many lookups, but AutoSPF makes that problem go away. The length of the SPF record is typically not the issue; it's the amount of lookups in the record that are. AutoSPF "flattens" the record, automatically expanding the defined lookups to IP addresses or ranges. And it auto-updates the record when the un-flattened lookups change. PJ Peter J. President · Small-Business (50 or fewer emp.) ### "Helped us go beyond capacity" > AutoSPF did exactly as described, it helped us get past our 10 lookup limit. Afterwards, we hit another limit regarding overall capacity and when contacted, they quickly provided us with a new solution to eliminate capacity issues entirely going forward, so now we can add as many SPF records as needed. They also provided us with a personalized support video explaining their new method in its entirety using our instance as the example. VU Verified User Financial Services · Mid-Market (51-1000 emp.) [Read our reviews on G2 ](https://www.g2.com/products/autospf/reviews) ```json {"@context":"https://schema.org","@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com","logo":{"@type":"ImageObject","url":"https://autospf.com/images/autospf-logo.png"},"description":"Automatic SPF flattening and email authentication management. 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I appreciate that it keeps a log of changes made, which prevents many mistakes. A client's SPF record would have way too many lookups, but AutoSPF makes that problem go away. The length of the SPF record is typically not the issue; it's the amount of lookups in the record that are. AutoSPF \"flattens\" the record, automatically expanding the defined lookups to IP addresses or ranges. And it auto-updates the record when the un-flattened lookups change.","name":"AutoSPF Flattens SPF Records Seamlessly & Keeps Changes Logged - I am quite pleased with the product","publisher":{"@type":"Organization","name":"G2","url":"https://www.g2.com"}},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":5,"bestRating":5},"author":{"@type":"Person","name":"Verified User","jobTitle":"Financial Services"},"datePublished":"2025-07-31","reviewBody":"AutoSPF did exactly as described, it helped us get past our 10 lookup limit. Afterwards, we hit another limit regarding overall capacity and when contacted, they quickly provided us with a new solution to eliminate capacity issues entirely going forward, so now we can add as many SPF records as needed. They also provided us with a personalized support video explaining their new method in its entirety using our instance as the example.","name":"Helped us go beyond capacity","publisher":{"@type":"Organization","name":"G2","url":"https://www.g2.com"}}]} ```