Extended SMTP

（重定向自EHLO）

Extended SMTP (ESMTP), sometimes referred to as Enhanced SMTP, is a definition of protocol extensions to the Simple Mail Transfer Protocol standard. The extension format was defined in November 1995 in IETF publication RFC 1869 which established a general structure for all existing and future extensions.

单词	EHLO
释义	EHLO 英语百科 Extended SMTP （重定向自EHLO） Extended SMTP (ESMTP), sometimes referred to as Enhanced SMTP, is a definition of protocol extensions to the Simple Mail Transfer Protocol standard. The extension format was defined in November 1995 in IETF publication RFC 1869 which established a general structure for all existing and future extensions.
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