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Calendar Invite from external party RRS feed

  • Question

  • Interweb,

    We are having an odd issue that started a couple of weeks ago, I believe.  When an external sender sends a calendar invite to any one in our organization, the sender will receive a bounce back from a distribution group.  The message is delivered to the intended recipients.  Below is the bounce back that people are receiving.  I have checked the settings on that distribution mailbox and nothing seems out of the ordinary.  We have a policy on Exchange to prevent messages from being sent to distribution groups so Exchange is doing what we have told it to do.  Its just really weird that calendar invites are including that group when it wasn't ever added to begin with.

    Any assistance that can be provided would be greatly appreciated it.  

    Delivery has failed to these recipients or distribution lists:

    ITS Communications<mailto:itscommunications@eastersealsucp.com>
    Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.
    ________________________________
    Sent by Microsoft Exchange Server 2007

    Diagnostic information for administrators:

    Generating server: domain.local

    itscommunications@eastersealsucp.com
    #550 5.7.1 RESOLVER.RST.NotAuthorized; not authorized ##

    Original message headers:

    Received: from RALMSX02.domain.local ([fe80::899b:8e87:c544:ef87]) by
     RALMSX02.domain.local ([fe80::899b:8e87:c544:ef87%14]) with mapi; Mon, 21 Oct
     2013 10:48:59 -0400
    Content-Type: application/ms-tnef; name="winmail.dat"
    Content-Transfer-Encoding: binary
    From: "Erik J. Small" <Test@gmail.com>
    To: ITS Communications <itscommunications@eastersealsucp.com>
    Date: Mon, 21 Oct 2013 10:48:58 -0400
    Subject: [*****SPAM*****]  Invitation: Test Event @ Mon Oct 21, 2013 11:30am
     - 12:30pm (Test@gmail.com)
    Thread-Topic: [*****SPAM*****]  Invitation: Test Event @ Mon Oct 21, 2013
     11:30am - 12:30pm (Test@gmail.com)
    Thread-Index: Ac7ObKyTe88w2saTR0KxhZVKpxG8rw==
    Message-ID: <C7CD6327C3575240B43862411B9336150B2A16AA9E@RALMSX02.domain.local>
    Reply-To: "Erik J. Small" <Test@gmail.com>
    Accept-Language: en-US
    Content-Language: en-US
    X-MS-Has-Attach: yes
    X-MS-TNEF-Correlator: <C7CD6327C3575240B43862411B9336150B2A16AA9E@RALMSX02.domain.local>
    x-asg-debug-id: 1382366936-02eba17ceb1011fd0001-lHt8NN
    x-barracuda-envelope-from: 32D5lUgsJDYMlyprzthss87nthps.jvtjoypz.zptwzvulhz0lyzlhsz1jw.jvt@calendar-server.bounces.google.com
    x-asg-orig-subj: Invitation: Test Event @ Mon Oct 21, 2013 11:30am - 12:30pm
     (Test@gmail.com)
    x-barracuda-connect: mail-ie0-f201.google.com[209.85.223.201]
    x-barracuda-start-time: 1382366937
    x-barracuda-url: http://spam.nc.eastersealsucp.com:8000/cgi-mod/mark.cgi
    x-virus-scanned: by bsmtpd at nc.eastersealsucp.com
    x-barracuda-bayes: SPAM GLOBAL 1.0000 1.0000 4.3430
    x-barracuda-spam-score: 4.85
    x-barracuda-spam-status: Yes, SCORE=4.85 using global scores of
     TAG_LEVEL=3.5 QUARANTINE_LEVEL=6.0 KILL_LEVEL=8.0 tests=BSF_RULE7568M,
     BSF_SC0_MISMATCH_TO, HTML_MESSAGE, MAILTO_TO_SPAM_ADDR
    x-barracuda-spam-report: Code version 3.2, rules version 3.2.2.141668   Rule
     breakdown below         pts rule name              description ----
     ---------------------- --------------------------------------------------
            0.00 BSF_SC0_MISMATCH_TO    Envelope rcpt doesn't match header  0.00
     MAILTO_TO_SPAM_ADDR    URI: Includes a link to a likely spammer email  0.00
     HTML_MESSAGE           BODY: HTML included in message  0.50 BSF_RULE7568M
              Custom Rule 7568M
    x-barracuda-spam-flag: YES
    dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed;        d=gmail.com;
     s=20120113;
            h=mime-version:reply-to:sender:auto-submitted:message-id:date:subject
             :from:to:content-type;
            bh=Eb9gNuu9NiAaUQNDU5UEEAsHCAeTELl2zWVjaItUB24=;
            b=dhWg6J128WW2b2w5mnZGPtrcjltbYw6D92N7NWTRtm6aZ9Y7ju5v+0ePKxJDpJyxj1
             Z+IHN1oc8t05Hi3d6tKjOhbDKstm626HLZgVXTqx6Om5dQmrTTElpExooUTazGVRYr/7
             L3f7p1NAlCzSDR8R+I8rymEpO1/pskVZ5Wmx4yqR3CgdSXD6JHW2WQOayAggtOCjDdUZ
             QKaO7Z+StwW90elEWQFQhWfycEyW8HzkhYK+HmvTAv97Npn239i+M3NboMuPKFegwqDa
             3Vlt3G8sCk0ToSA9JeJ9hjFNOkKCP/tKViXU+xLITOFvbfpTgFBRF6TZvGAlXkjZ57gc
             Z6LA==
    x-barracuda-rbl-trusted-forwarder: 209.85.223.201
    auto-submitted: auto-generated
    x-barracuda-bbl-ip: 0.0.0.0
    x-barracuda-rbl-ip: 0.0.0.0
    x-received: by 10.50.85.109 with SMTP id g13mr5310539igz.1.1382366936520;
     Mon, 21 Oct 2013 07:48:56 -0700 (PDT)
    x-barracuda-bwl-ip: 0.0.0.0
    x-barracuda-encrypted: RC4-SHA
    MIME-Version: 1.0


    -------------------------------------------------------------------------
    Content-Type: message/delivery-status

    Reporting-MTA: dns;domain.local
    Received-From-MTA: dns;eastersealsucp.com
    Arrival-Date: Mon, 21 Oct 2013 14:48:59 +0000

    Final-Recipient: rfc822;itscommunications@eastersealsucp.com
    Action: failed
    Status: 5.7.1
    Diagnostic-Code: smtp;550 5.7.1 RESOLVER.RST.NotAuthorized; not authorized
    X-Display-Name: ITS Communications

    Monday, October 21, 2013 3:27 PM

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