Hello, Recently a Managing Partner has begun to receive unsolicited delivery notifications about messages that were successfully received by one mail recipient out of a number of groups and listed recipients. The user did not configure the communication for any notification and only receives notification of success for one recipient out of eight or more; including several groups. This has occurred at least twice this week with no recognizable pattern. Questions: Is anyone familiar with this scenario? What log files can I review to discern the cause for these submissions? Thank you in advance for your assistance.

Please describe the exchange topology Please also describe more about the “Managing Partner” and the recipients, whether they are external or internal users? Can’t the issue be reproduced permanently on specific recipient? Please provide the information in the delivery notification Please check the message headers of the delivery notification and the messages that triggered the notificationJames Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com

Hi James, These are internal users [Managing Partner =Title; i.e. CEO. The notification is similiar to that which one would receive if the user had enabled "Request a Deliver Receipt". However, these options were not enabled and the user is receiving delivery confirmation for one recipient out of 20+. The number of affected users has broadened and includes users of different departments and paygrades. The issue occurs randomly.

Where are they coming from? Have you looked at the internet headers of the messages? Or message tracking?

The messages are coming from our own Exchange Server. However, the sender has not enabled any delivery options and only receives the notification about one recipient out of several DLs and several intended recipients. Email message is as such: From: System Administrator Sent: Thursday, May 27, 2010 9:56 AM To: Sender Subject: Delivered: Just a reminder that I'm leaving at 3:15ish today for a Dr. Appt. ( I will not be returning to the office) Your message To: DL0; DL1; User0; User1; User2 Subject: Just a reminder that I'm leaving at 3:15ish today for a Dr. Appt. ( I will not be returning to the office) Sent: 5/27/2010 9:56 AM was delivered to the following recipient(s): Member of DL0 on 5/27/2010 9:56 AM Header information is as follows: Microsoft Mail Internet Headers Version 2.0 From: postmaster@domain.com To: User@domain.com Date: Thu, 27 May 2010 09:56:27 -0500 MIME-Version: 1.0 Content-Type: multipart/report; report-type=delivery-status; boundary="9B095B5ADSN=_01CAEE029F0C7C6F000087CBsmtp2.domain.com" X-DSNContext: 7ce717b1 - 1158 - 00000020 - 00000000 Message-ID: <BsQwY6YHk000001d5@smtp2.mpwcpa.com> Subject: Delivery Status Notification (Success) --9B095B5ADSN=_01CAEE029F0C7C6F000087CBsmtp2.domain.com Content-Type: text/plain; charset=unicode-1-1-utf-7 --9B095B5ADSN=_01CAEE029F0C7C6F000087CBsmtp2.domain.com Content-Type: message/delivery-status --9B095B5ADSN=_01CAEE029F0C7C6F000087CBsmtp2.domain.com Content-Type: message/rfc822 Received: from mail pickup service by smtp2.domain.com with Microsoft SMTPSVC; Thu, 27 May 2010 09:56:24 -0500 X-6DE52A93CBB85BD55D8D19C48AE132CC: Internal X-RecipFlags: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.4325 Importance: normal Priority: normal Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 Subject: Just a reminder that I'm leaving at 3:15ish today for a Dr. Appt. ( I will not be returning to the office) Date: Thu, 27 May 2010 09:56:23 -0500 PrevMsg-ID: <400A7CB700E008489CB921E4CA9D67F402E211E1@ExchangeServer.domain.local> X-MS-Has-Attach: X-MS-TNEF-Correlator: <400A7CB700E008489CB921E4CA9D67F402E211E1@ExchangeServer.domain.local> Thread-Topic: Just a reminder that I'm leaving at 3:15ish today for a Dr. Appt. ( I will not be returning to the office) thread-index: Acr9rMZbviUiJqg8SeCr720n+z61QQ== From: "User" <User@domain.com> To: "DL" <DistList@domain.com>, "DL" <DistList@domain.com>, "User" <User@domain.com>, "User" <User@domain.com>, "User" <User@domain.com> Message-ID: <EX01-HOUT9ndzW1D4Wz000038b1@smtp2.domain.com> X-OriginalArrivalTime: 27 May 2010 14:56:24.0570 (UTC) FILETIME=[C6D795A0:01CAFDAC] --9B095B5ADSN=_01CAEE029F0C7C6F000087CBsmtp2.domain.com--