Similar to STARTTLS
SMTPS
SMTPS
Base64
Base64▲1 trends
Multipurpose Internet Mail Extensions
MIME
Quoted-printable
Quoted-printable
.eg
.eg
.tz
.tz
0.0.0.0
0.0.0.0
Application-Layer Protocol Negotiation
Application-Layer Protocol Negotiation
Datagram Transport Layer Security
Datagram Transport Layer Security
FREAK
FREAK
HTTP Strict Transport Security
HTTP Strict Transport Security
1048576
DKIM
DomainKeys Identified MailDMARC
DMARCExchange ActiveSync
Exchange ActiveSync
Internet Message Access Protocol
Internet Message Access ProtocolJSON Meta Application Protocol
JSON Meta Application Protocol
Messaging Application Programming Interface
MAPI
POP before SMTP
POP before SMTP
Post Office Protocol
Post Office Protocol
PPAP (セキュリティ)
Sender Policy Framework
Sender Policy Framework
Simple Mail Transfer Protocol
Simple Mail Transfer ProtocolSMTP-AUTH
UTF-7
UTF-7
送信ドメイン認証
Email authentication
フィードバックループ
Feedback loop (email)
Template:Internet-stub
Template:Internet-stub