{"draft":"","doc_id":"RFC1653","title":" SMTP Service Extension for Message Size Declaration ","authors":["J. Klensin","N. Freed","K. Moore"],"format":["ASCII","HTML"],"page_count":"8","pub_status":"DRAFT STANDARD","status":"DRAFT STANDARD","source":"Internet Mail Extensions","abstract":" This memo defines an extension to the SMTP service whereby an SMTP client and server may interact to give the server an opportunity to decline to accept a message (perhaps temporarily) based on the client's estimate of the message size.  [STANDARDS-TRACK]  ","pub_date":"June 1994","keywords":["Mail","Simple","Transfer","Protocol"],"obsoletes":["RFC1427"],"obsoleted_by":["RFC1870"],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC1653","errata_url":null}