| 翻訳と辞書 |
| Sender Rewriting Scheme ： ウィキペディア英語版 |
Sender Rewriting Scheme
For a mail transfer agent (MTA), the Sender Rewriting Scheme (SRS) is a scheme for rewriting the envelope sender address of an email message, in view of remailing it. In this context, ''remailing'' is a kind of email forwarding. SRS was devised in order to forward email without breaking the Sender Policy Framework (SPF), in 2003.
== Background ==
In a number of cases, including change of email address and mailing lists, an MTA accepts an email message that is not destined to a local mailbox but needs to be forwarded. In such cases, the question arises of who deserves to receive any related bounce message. In general, that is either the author, or a person or other entity who administers the forwarding itself. Sending bounces to the author is administratively simpler and used to be accomplished by just keeping the original envelope sender. However, if the author address is subject to a strict SPF policy (-all) and the target MTA happens to enforce it, the forwarding transaction can be rejected. As a workaround, it is possible to synthesize on the fly a temporary bounce address that will direct any bounce back to the current MTA. The scheme provides for recovering the original envelope address, so that if a bounce does arrive, it can be forwarded along the reverse path—with an empty envelope sender this time.
While there are other workarounds, SRS is a fairly general one. It is interesting to note how its notion of reversing the path resembles the original routing dispositions for email, see below.
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「Sender Rewriting Scheme」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.
|
|