{"draft":"draft-klensin-rfc2821bis-11","doc_id":"RFC5321","title":"Simple Mail Transfer Protocol","authors":["J. Klensin"],"format":["ASCII","HTML"],"page_count":"95","pub_status":"DRAFT STANDARD","status":"DRAFT STANDARD","source":"IETF - NON WORKING GROUP","abstract":"This document is a specification of the basic protocol for Internet\r\nelectronic mail transport.  It consolidates, updates, and clarifies\r\nseveral previous documents, making all or parts of most of them\r\nobsolete.  It covers the SMTP extension mechanisms and best practices\r\nfor the contemporary Internet, but does not provide details about\r\nparticular extensions.  Although SMTP was designed as a mail\r\ntransport and delivery protocol, this specification also contains\r\ninformation that is important to its use as a \"mail submission\"\r\nprotocol for \"split-UA\" (User Agent) mail reading systems and mobile\r\nenvironments.  [STANDARDS-TRACK]","pub_date":"October 2008","keywords":["[SMTP]"],"obsoletes":["RFC2821"],"obsoleted_by":[],"updates":["RFC1123"],"updated_by":["RFC7504"],"see_also":[],"doi":"10.17487\/RFC5321","errata_url":"https:\/\/www.rfc-editor.org\/errata\/rfc5321"}