{"draft":"draft-hansen-4468upd-mailesc-registry-05","doc_id":"RFC5248","title":"A Registry for SMTP Enhanced Mail System Status Codes","authors":["T. Hansen","J. Klensin"],"format":["ASCII","HTML"],"page_count":"11","pub_status":"BEST CURRENT PRACTICE","status":"BEST CURRENT PRACTICE","source":"IETF - NON WORKING GROUP","abstract":"The specification for enhanced mail system status codes, RFC 3463,\r\nestablishes a new code model and lists a collection of status codes.\r\nWhile it anticipated that more codes would be added over time, it did\r\nnot provide an explicit mechanism for registering and tracking those\r\ncodes.  This document specifies an IANA registry for mail system\r\nenhanced status codes, and initializes that registry with the codes\r\nso far established in published standards-track documents, as well as\r\nother codes that have become established in the industry.  This document \r\nspecifies an Internet Best Current Practices for the\r\nInternet Community, and requests discussion and suggestions for\r\nimprovements.","pub_date":"June 2008","keywords":["[--------]","simple mail transfer protocol"],"obsoletes":[],"obsoleted_by":[],"updates":["RFC3463","RFC4468","RFC4954"],"updated_by":[],"see_also":["BCP0138"],"doi":"10.17487\/RFC5248","errata_url":null}