What is Sender Policy Framework?

Sender Policy Framework (SPF) is a Application Layer protocol in the Email category. Email authentication protocol that specifies which mail servers are authorized to send email for a domain via DNS TXT records.

What port does SPF use?

SPF does not use a specific default port number. The protocol is defined in RFC 7208.

Unknown

Sender Policy Framework

Application Layer — Email

Visão geral do protocolo

Nome completo Sender Policy Framework

Abreviatura SPF

Camada OSI Application Layer

Categoria Email

RFC RFC 7208

Sobre SPF

Email authentication protocol that specifies which mail servers are authorized to send email for a domain via DNS TXT records.

Application Layer Email

Referência de padrões

SPF é definido em RFC 7208, publicado pelo Internet Engineering Task Force (IETF). Os RFCs são os documentos de padrões oficiais para protocolos de internet e estão disponíveis gratuitamente para revisão pública.

Protocolos relacionados — Application Layer

HTTP Hypertext Transfer Protocol HTTPS HTTP Secure HTTP/2 HTTP/2 HTTP/3 HTTP/3 WS WebSocket SMTP Simple Mail Transfer Protocol IMAP Internet Message Access Protocol POP3 Post Office Protocol v3