{"draft":"","doc_id":"RFC1870","title":" SMTP Service Extension for Message Size Declaration ","authors":["J. Klensin","N. Freed","K. Moore"],"format":["ASCII","HTML"],"page_count":"9","pub_status":"INTERNET STANDARD","status":"INTERNET 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":"October 1995","keywords":["SMTP-SIZE","Simple Mail Transfer Protocol"],"obsoletes":["RFC1653"],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":["STD0010"],"doi":"10.17487\/RFC1870","errata_url":null}