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computers / comp.mail.sendmail / EAI sending address seems not to work

EAI sending address seems not to work

<s8h1o7$k6r$1@gal.iecc.com>

https://www.rocksolidbbs.com/computers/article-flat.php?id=171&group=comp.mail.sendmail#171

copy link Newsgroups: comp.mail.sendmail

Path: i2pn2.org!i2pn.org!weretis.net!feeder6.news.weretis.net!xmission!usenet.csail.mit.edu!news.iecc.com!.POSTED.news.iecc.com!not-for-mail
From: johnl@taugh.com (John Levine)
Newsgroups: comp.mail.sendmail
Subject: EAI sending address seems not to work
Date: Mon, 24 May 2021 20:19:19 -0000 (UTC)
Organization: Taughannock Networks
Message-ID: <s8h1o7$k6r$1@gal.iecc.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Injection-Date: Mon, 24 May 2021 20:19:19 -0000 (UTC)
Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970";
logging-data="20699"; mail-complaints-to="abuse@iecc.com"
Cleverness: some
X-Newsreader: trn 4.0-test77 (Sep 1, 2010)
Originator: johnl@iecc.com (John Levine)

by: John Levine - Mon, 24 May 2021 20:19 UTC

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

Subject	Author
EAI sending address seems not to work	John Levine