电子邮件验证
STARTTLS
定义
A command that opportunistically upgrades an existing plaintext protocol connection to a TLS-encrypted one, used in SMTP, IMAP, and POP3 to secure the transport while keeping standard ports.
电子邮件验证
A command that opportunistically upgrades an existing plaintext protocol connection to a TLS-encrypted one, used in SMTP, IMAP, and POP3 to secure the transport while keeping standard ports.