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  1. #1
    Join Date
    Sep 2009
    Portland, Oregon

    Default 550 #5.7.1 Your access to submit messages to this e-mail system has been rejected.

    Last week we noticed some emails not leaving the Exchange queue and now this week they are getting blocked right away from the exchange server. I am pretty sure that this in on the Recieving end as we can email everyone else just fine.

    As Frontier has purchased Verizon's Telephone and Internet services earler this year and are just now moving servers and rearranging NOC's. I see a mess comming our way.

    *** Virus defs are current on all computers.
    *** Verified twice yesterday.
    *** Not listed on any RBL.
    *** Sent an unblock request to Frontiernet.

    Here is some changed header information from the bounceback.

    ----- Original Message -----
    From: "Mail Delivery System" <[email protected]
    To: <[email protected]
    Sent: Monday, October 18, 2010 3:07 PM
    Subject: Mail delivery failed: returning message to sender

    This message was created automatically by mail delivery software.

    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:

    [email protected]
    SMTP error from remote mail server after RCPT TO:<[email protected]:
    host []: 550 #5.7.1 Your access to submit messages to this e-mail system has been rejected.

    ------ This is a copy of the message, including all the headers. ------

    Return-path: <[email protected]
    Received: from localhost.localdomain ([] helo=localhost)by with esmtpa (Exim 4.69)
    (envelope-from <[email protected])id 1P7xrn-0000wP-0u
    for [email protected]; Tue, 19 Oct 2010 02:07:39 +0400
    Received: from ([]) by MIME library) with HTTP; Tue, 19 Oct 2010

    02:07:38 +0400 Message-ID: <[email protected] t
    Date: Tue, 19 Oct 2010 02:07:38 +0400
    From: [email protected]
    To: [email protected]
    Subject: test
    MIME-Version: 1.0
    Content-Type: text/plain;
    Content-Disposition: inline
    Content-Transfer-Encoding: 7bit
    User-Agent: Internet Messaging Program (IMP) H3 (4.1.6)

    The WHOIS:
    OrgName: Frontier Communications of America, Inc.
    OrgId: FRTR
    Address: 180 South Clinton AVE
    City: Rochester
    StateProv: NY
    PostalCode: 14646
    Country: US
    RegDate: 1996-05-09
    Updated: 2009-09-29
    Comment: all abuse complaints will only be answered when sent to [email protected] Ref: - Affordable Web Hosting
    __________________________________________________ __________

    Providing low cost "Value" Hosting since 1999

  2. #2
    Join Date
    Aug 2010


    My first thoughts:
    • rDNS
    • You're listed on one or more block-lists.
    • You've previously sent e-mail to a non-existent account on their system.
    I seem to recall issues where Frontier and rDNS was the cause of that in the past.
    Last edited by GGWH-James; 10-19-10 at 08:01 AM.

  3. #3
    Join Date
    Dec 2005
    Henderson, KY


    This isn't good - Received: from localhost.localdomain ([] helo=localhost)

    I agree with Jamroar. Plus FYI the non-existent account would be a honeypot spam trap most likely.

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