Similar to DKIM
ドメインキー
DomainKeys
Sender Policy Framework
Sender Policy Framework
送信ドメイン認証
Email authentication
DMARC
DMARCOpenPGP
POP before SMTP
POP before SMTP
S/MIME
S/MIMESMTP-AUTH
Multipurpose Internet Mail Extensions
MIME
Post Office Protocol
Post Office Protocol
Quoted-printable
Quoted-printable
Simple Mail Transfer Protocol
Simple Mail Transfer Protocol
SMTPS
SMTPS
UTF-7
UTF-7
フィードバックループ
Feedback loop (email)Automated Certificate Management Environment
Automatic Certificate Management EnvironmentIPsec
IPsec
Online Certificate Status Protocol
Online Certificate Status Protocol
QUIC
QUICSecure HyperText Transfer Protocol
Secure Hypertext Transfer ProtocolSimple Authentication and Security Layer
Simple Authentication and Security Layer
暗号メッセージ構文
Cryptographic Message SyntaxBitmessage
Bitmessage
Inbound Port 25 Blocking
Outbound Port 25 Blocking
Sender ID
Sender ID
SMTP認証
バウンスメール
Bounce message
