Unknown
Sender Policy Framework
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://ipfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>
Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://ipfyi.com/entity//
Add a dynamic SVG badge to your README or docs.
[](https://ipfyi.com/entity//)
Use the native HTML custom element.
Application Layer — Email
프로토콜 개요
정식 명칭
Sender Policy Framework
약어
SPF
OSI 계층
Application Layer
카테고리
Email
RFC
RFC 7208
소개 SPF
Email authentication protocol that specifies which mail servers are authorized to send email for a domain via DNS TXT records.
Application Layer
Email
표준 문서
SPF은(는) IETF(Internet Engineering Task Force)에서 발행한 RFC 7208에 정의되어 있습니다. RFC는 인터넷 프로토콜의 공식 표준 문서이며, 누구나 자유롭게 열람할 수 있습니다.