翻訳と辞書 Words near each other ・ Smut Peddlers ・ Smuteye, Alabama ・ Smutnoye Vremia ・ Smuts Hall ・ Smuts Ngonyama ・ Smuts Pass ・ Smuts Professor of Commonwealth History ・ Smutsia ・ Smuttynose Brewing Company ・ Smuttynose Island ・ Smuxi ・ Smużki ・ Smużyk ・ SMTN ・ SMTP (company) ・ SMTP Authentication ・ SMTP proxy ・ SMTPS ・ SMTU ・ SMTV Live ・ SMtv San Marino ・ SMtv San Marino (TV channel) ・ SMU ・ SMU Bangalore ・ SMU business plan competition ・ SMU Mustangs ・ SMU Mustangs football ・ SMU Mustangs football under Bill Meek ・ SMU Mustangs football under Bobby Collins ・ SMU Mustangs football under Dave Smith Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク SMTP Authentication ： ウィキペディア英語版 SMTP Authentication SMTP Authentication, often abbreviated SMTP AUTH, is an extension of the Simple Mail Transfer Protocol whereby an SMTP client may log in using an authentication mechanism chosen among those supported by the SMTP server. The authentication extension is mandatory for submission servers.〔The relevant RFCs for reference are specified in the #Standards section〕 ==History== Differently from mail-access protocols, the original SMTP specified by Jon Postel in the 1970s did not provide for using passwords for sending email messages. This lack of security gave rise to open mail relays, unprotected mail servers used to propagate spam and worms that became a plague in the late '90s. Before SMTP AUTH, a ''relay client'' had to be identified by IP address, which is only practical for email services provided by the same Internet service provider (ISP) supplying the connection, or else using specific hacks, such as POP before SMTP. John Gardiner Myers published the first draft of SMTP AUTH in 1995, and it has been successively developed and discussed in the IETF along with mail submission protocol, Extended SMTP (ESMTP), and Simple Authentication and Security Layer (SASL). An older SASL mechanism for ESMTP authentication (ESMTPA) is CRAM-MD5, and uses of the MD5 algorithm in HMACs (hash-based message authentication codes) are still considered sound. The Internet Mail Consortium (IMC) reported 55% of mail servers were open relays in 1998, but less than 1% in 2002. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「SMTP Authentication」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.