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  • EAI sending address seems not to work

    From John Levine@21:1/5 to All on Mon May 24 20:19:19 2021
    I'm trying to send myself some test messages with EAI addresses. I'm sending it with sendmail -U

    ... while talking to [127.0.0.1]:
    MAIL From:<用户1@发送邮件.电子邮件测试.中国> SIZE=295 SMTPUTF8
    <<< 553 5.1.8 <用户1@发送邮件.电子邮件测试.中国>... Domain of sender address ��������1@��������������件.�����������件������.中���� does not exist
    501 5.6.0 Data format error

    That mail from address is good, it's the system I'm sending it from. I can send mail to that address and it works.

    The domain xn--5nq21jyu9d1ta.xn--5nqx41au4nqohsp3axcg.xn--fiqs8s has A and AAAA but not MX,
    but that shouldn't make any difference. Is it perhaps not turning the address into A-labels before checking it?

    Here's a sample message I sent to it:

    Return-Path: <johnl@iecc.com>
    Received: from gal.iecc.com (gal.iecc.com [IPv6:2001:470:1f07:1126:0:43:6f73:7461])
    by xn--5nq21jyu9d1ta.xn--5nqx41au4nqohsp3axcg.xn--fiqs8s (8.17.0.0/8.16.1) with UTF8SMTPS id 14OKFqtF073095
    (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=FAIL)
    for <用户1@发送邮件.电子邮件测试.中国>; Mon, 24 May 2021 20:15:53 GMT
    (envelope-from johnl@iecc.com)
    Received: (qmail 21712 invoked from network); 24 May 2021 20:15:51 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=iecc.com; h=date:message-id:from:to:subject; s=54ce.60ac0977.k2105; bh=b07fICB+eQ7TrquxN0vXmDa9vGkZkN8i0kWopdEaklU=; b=
    ksr15Lo4yDu1EBimO9nVTQiro0QQVGBJfKEcEpN2RqyqV27r9jY7y0FbAZ743idASu4QmcaYenj8i5WYNH8fRhh7bw386wIR+Nze26AcKSjt/Tu1Hc5DfKoI9QE/XPoms4an2mj6YNuInKTpyHLyZesc7PhffmdVTMJ2X0YzNtWuqCIKEkd6UtjDOuAUPaYet+iGqZ+hPqVX6cUtulVMkG2xv34/5o1CUCuFqezdYUyXxvnORh2TWZw/
    qXxkySfSQJhyMwOfSQ6nGy46F4JMCzRLCFB08crJUWSCtjdi4rlyhf0XDbI3wOpQmAjjlriO2tY/zhhM5K1CWyYSCq9X/g==
    Received: from ary.qy ([IPv6:2001:470:1f07:1126::78:696d:6170])
    by imap.iecc.com ([IPv6:2001:470:1f07:1126::78:696d:6170])
    with UTF8SMTPS (TLS1.2 ECDHE-RSA AES-256-GCM AEAD) via TCP6; 24 May 2021 20:15:51 -0000
    Received: by ary.qy (Postfix, from userid 501)
    id 7F4B78964AA; Mon, 24 May 2021 16:15:49 -0400 (EDT)
    Date: 24 May 2021 16:15:49 -0400
    Message-Id: <20210524201550.7F4B78964AA@ary.qy>
    From: "John Levine" <johnl@iecc.com>
    To: 用户1@发送邮件.电子邮件测试.中国
    Subject: test this

    do I get it

    --
    Regards,
    John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies",
    Please consider the environment before reading this e-mail. https://jl.ly

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