Returned to Sender?

  • Hello,

    Today someone sent me apparently an email via a CF7 Form (and it definitely wasn′t me) via https://www.virtuelles-homestaging.de .

    But I didn′t get an acutal message, instead I got a “return to sender” email stating the following (i put some “notes” in it) :

    “This message was created automatically by mail delivery software.
    Error
    A message that you sent could not be delivered to one or more of its
    recipients. This is a permanent error. The following address(es) failed:

    (note: external and Unknown address) …@gmail.com
    SMTP error from remote mail server after RCPT TO:<[email protected]>:
    host gmail-smtp-in.l.google.com [2a00:XYZ… (note: code altered)]:
    550-5.1.1 The email account that you tried to reach does not exist. Please try
    550-5.1.1 double-checking the recipient’s email address for typos or
    550-5.1.1 unnecessary spaces. Learn more at
    550 5.1.1 https://support.google.com/mail/?p=NoSuchUser t823rbidsf194wri.224 – gsmtp (note: code altered)

    —— This is a copy of the message’s headers. ——

    Return-path: <[email protected]>
    Received: from app01-neu.ox.hosteurope.de ([92.51.170.135]); authenticated
    by wp513.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.0:ECDHE_RSA_XYZ (note: code altered))
    id 1hs101-015Ih-Oq; Mon, 29 Jul 2019 10:28:42 +0200
    Date: Mon, 29 Jul 2019 10:28:42 +0200 (CEST)
    From: [email protected]
    <[email protected]>
    Reply-To:
    [email protected] <[email protected]>
    To: (note: external and Unknown address) …@gmail.com
    Message-ID: <[email protected]>
    Subject: eMail versendet?
    MIME-Version: 1.0
    Content-Type: text/html; charset=UTF-8
    Content-Transfer-Encoding: 7bit
    X-Priority: 3
    Importance: Medium
    X-Mailer: Open-Xchange Mailer v7.8.4-Rev54
    X-Originating-Client: open-xchange-appsuite”

    As the site is freshly released only I wrote some test emails so far.
    But the strange thing is… the email address that is mentioned in this “return to sender” sounds like an actual email address using a name but with a missspelling. But I don′t know this email address or this person.

    Any idea what happened here?
    I′m quite confused.

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Author Takayuki Miyoshi

    (@takayukister)

    Why do you think this is connected to Contact Form 7?

    Thread Starter jahe112

    (@jahe112)

    I think without CF7 the only reason could be that I sent an email to this guy that was then returned. But I didn′t send anything.

    Plugin Author Takayuki Miyoshi

    (@takayukister)

    I don’t think so. You would see a header like “X-Mailer: PHPMailer 5.2.22” if this message was sent via Contact Form 7 or other WordPress functions, but what you actually have is this:

    X-Mailer: Open-Xchange Mailer v7.8.4-Rev54

Viewing 3 replies - 1 through 3 (of 3 total)
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