[Sysadmins] Поведение sendmail

[Aleksey Birukov]

Похоже, вот оно это письмо. На всякий случай я его ниже привёл полностью, а
сейчас только главные строки:

Received: from myhost.net (vmmyhost.net. [12.123.12.123])
        by mx.google.com with ESMTPS id
g2si2339080lbe.65.2013.04.03.07.47.21

   ----- The following addresses had permanent fatal errors -----
<E274A3E68 на ab-design.com>
    (reason: 550 5.1.1 <E274A3E68 на ab-design.com>: Recipient address
rejected: undeliverable address: host 46.29.89.90[46.29.89.90] said: 550 No
Such User Here (in reply to RCPT TO command))

Получается, что gmail делает обратный запрос на хост отправителя и получив
ответ, что такого юзера нет -- генерирует ошибку. Правильно?


--- полный текст письма ---
Delivered-To: 12345 на gmail.com
Received: by 10.221.10.133 with SMTP id pa5csp195623vcb;
        Wed, 3 Apr 2013 07:47:23 -0700 (PDT)
X-Received: by 10.152.87.73 with SMTP id v9mr1128906laz.2.1365000442688;
        Wed, 03 Apr 2013 07:47:22 -0700 (PDT)
Return-Path: <>
Received: from myhost.net (vmmyhost.net. [12.123.12.123])
        by mx.google.com with ESMTPS id
g2si2339080lbe.65.2013.04.03.07.47.21
        (version=TLSv1 cipher=RC4-SHA bits=128/128);
        Wed, 03 Apr 2013 07:47:22 -0700 (PDT)
Received-SPF: pass (google.com: best guess record for domain of
myhost.netdesignates 12.123.12.123 as permitted sender)
client-ip=12.123.12.123;
Authentication-Results: mx.google.com;
       spf=pass (google.com: best guess record for domain of
myhost.netdesignates 12.123.12.123 as permitted sender) smtp.mail=
Received: from localhost (localhost)
    by myhost.net (8.14.3/8.14.3/Debian-9.4) id r33Ej7Ea026029;
    Wed, 3 Apr 2013 18:45:21 +0400
Date: Wed, 3 Apr 2013 18:45:21 +0400
From: Mail Delivery Subsystem <MAILER-DAEMON на myhost.net>
Message-Id: <201304031445.r33Ej7Ea026029 на myhost.net>
To: postmaster на myhost.net
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
    boundary="r33Ej7Ea026029.1365000321/myhost.net"
Subject: Postmaster notify: see transcript for details
Auto-Submitted: auto-generated (postmaster-notification)

This is a MIME-encapsulated message

--r33Ej7Ea026029.1365000321/myhost.net

The original message was received at Wed, 3 Apr 2013 18:45:07 +0400
from localhost

   ----- The following addresses had permanent fatal errors -----
<E274A3E68 на ab-design.com>
    (reason: 550 5.1.1 <E274A3E68 на ab-design.com>: Recipient address
rejected: undeliverable address: host 46.29.89.90[46.29.89.90] said: 550 No
Such User Here (in reply to RCPT TO command))

   ----- Transcript of session follows -----
... while talking to mx1.email-cluster.com.:
>>> DATA
<<< 550 5.1.1 <E274A3E68 на ab-design.com>: Recipient address rejected:
undeliverable address: host 46.29.89.90[46.29.89.90] said: 550 No Such User
Here (in reply to RCPT TO command)
550 5.1.1 <E274A3E68 на ab-design.com>... User unknown
<<< 554 5.5.1 Error: no valid recipients

--r33Ej7Ea026029.1365000321/myhost.net
Content-Type: message/delivery-status

Reporting-MTA: dns; myhost.net
Received-From-MTA: DNS; [78.9.166.158]
Arrival-Date: Wed, 3 Apr 2013 18:45:07 +0400

Final-Recipient: RFC822; E274A3E68 на ab-design.com
Action: failed
Status: 5.1.1
Remote-MTA: DNS; mx1.email-cluster.com
Diagnostic-Code: SMTP; 550 5.1.1 <E274A3E68 на ab-design.com>: Recipient
address rejected: undeliverable address: host 46.29.89.90[46.29.89.90]
said: 550 No Such User Here (in reply to RCPT TO command)
Last-Attempt-Date: Wed, 3 Apr 2013 18:45:21 +0400

--r33Ej7Ea026029.1365000321/myhost.net
Content-Type: text/rfc822-headers

Return-Path: <MAILER-DAEMON>
Received: from localhost (localhost)
    by myhost.net (8.14.3/8.14.3/Debian-9.4) id r33Ej7EZ026029;
    Wed, 3 Apr 2013 18:45:07 +0400
Date: Wed, 3 Apr 2013 18:45:07 +0400
From: Mail Delivery Subsystem <MAILER-DAEMON>
Message-Id: <201304031445.r33Ej7EZ026029 на myhost.net>
To: <E274A3E68 на ab-design.com>
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
    boundary="r33Ej7EZ026029.1365000307/myhost.net"
Subject: Returned mail: see transcript for details
Auto-Submitted: auto-generated (failure)

--r33Ej7Ea026029.1365000321/myhost.net--

--
С уважением,
Бирюков Алексей
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