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B.5.  Service Provided, Several Authentications Done, Different MTAs

A message that was relayed inbound by two different MTAs that conform to this specification and applied multiple message authentication checks:

        Authentication-Results: example.com;
                  sender-id=hardfail header.from=example.com;
                  dkim=pass (good signature) header.i=sender@example.com
        Received: from mail-router.example.com
                      (mail-router.example.com [192.0.2.1])
                  by auth-checker.example.com (8.11.6/8.11.6)
                      with ESMTP id i7PK0sH7021929;
                  Fri, Feb 15 2002 17:19:22 -0800
        Authentication-Results: example.com;
                  auth=pass (cram-md5) smtp.auth=sender@example.com;
                  spf=hardfail smtp.mailfrom=example.com
        Received: from dialup-1-2-3-4.example.net
                      (dialup-1-2-3-4.example.net [192.0.2.200])
                  by mail-router.example.com (8.11.6/8.11.6)
                      with ESMTP id g1G0r1kA003489;
                  Fri, Feb 15 2002 17:19:07 -0800
        DKIM-Signature:  v=1; a=rsa-sha256; s=gatsby; d=example.com;
                  i=sender@example.com; t=1188964191; c=simple/simple;
                  h=From:Date:To:Message-Id:Subject;
                  bh=sEuZGD/pSr7ANysbY3jtdaQ3Xv9xPQtS0m70;
                  b=EToRSuvUfQVP3Bkz ... rTB0t0gYnBVCM=
        From: sender@example.com
        Date: Fri, Feb 15 2002 16:54:30 -0800
        To: receiver@example.com
        Message-Id: <12345.abc@example.com>
        Subject: here's a sample

        Hello!  Goodbye!

　
B.5.  サービスが提供されており、複数のMTAで複数の認証が行われた

本仕様に準拠している2つの別々のMTAを通して内部に中継され、複数のメッセージ認証検査を適用されたメッセージ：

        Authentication-Results: example.com;
                  sender-id=hardfail header.from=example.com;
                  dkim=pass (good signature) header.i=sender@example.com
        Received: from mail-router.example.com
                      (mail-router.example.com [192.0.2.1])
                  by auth-checker.example.com (8.11.6/8.11.6)
                      with ESMTP id i7PK0sH7021929;
                  Fri, Feb 15 2002 17:19:22 -0800
        Authentication-Results: example.com;
                  auth=pass (cram-md5) smtp.auth=sender@example.com;
                  spf=hardfail smtp.mailfrom=example.com
        Received: from dialup-1-2-3-4.example.net
                      (dialup-1-2-3-4.example.net [192.0.2.200])
                  by mail-router.example.com (8.11.6/8.11.6)
                      with ESMTP id g1G0r1kA003489;
                  Fri, Feb 15 2002 17:19:07 -0800
        DKIM-Signature:  v=1; a=rsa-sha256; s=gatsby; d=example.com;
                  i=sender@example.com; t=1188964191; c=simple/simple;
                  h=From:Date:To:Message-Id:Subject;
                  bh=sEuZGD/pSr7ANysbY3jtdaQ3Xv9xPQtS0m70;
                  b=EToRSuvUfQVP3Bkz ... rTB0t0gYnBVCM=
        From: sender@example.com
        Date: Fri, Feb 15 2002 16:54:30 -0800
        To: receiver@example.com
        Message-Id: <12345.abc@example.com>
        Subject: here's a sample

        Hello!  Goodbye!

　
Example 5: Headers reporting results from multiple MTAs

The “Authentication-Results” header field is present, indicating conformance to this specification.  Once again, the authserv-id used is the recipient’s DNS domain name.  The header field is present twice because two different MTAs in the chain of delivery did authentication tests.  The first, “mail-router.example.com” reports that [AUTH] and [SPF] were both used, and [AUTH] passed but [SPF] failed.  In the [AUTH] case, additional data is provided in the comment field, which the MUA can choose to render if desired.

例5： 複数のMTAからの結果を報告しているヘッダ

“Authentication-Results”ヘッダフィールドが存在し、本仕様に準拠していることを示している。ここでも、使われているauthserv-idは受信者のDNSドメイン名である。配送チェーン内の2つの異なるMTAが認証試験を行ったため、本ヘッダフィールドが2回登場している。第1の“mail-router.example.com”は[AUTH]と[SPF]を両方使ったこと、また[AUTH]には合格したが[SPF]には合格しなかったことを報告している。[AUTH]の場合はコメントフィールドで追加データが提供されており、MUAは必要なら示すことができる。

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