Glossary: Physical and Wireless Vectors, and Vulnerabilities
SMTP (Simple Mail Transfer Protocol)
Also written: SMTP, SMTPS, STARTTLS
The protocol for sending mail, on port 25. Encrypted options are SMTPS on port 465, or mail submission with STARTTLS on port 587.
Where the book teaches it
Related terms
POP3 (Post Office Protocol 3)IMAP (Internet Message Access Protocol)TLS (Transport Layer Security)