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Receiving Duplicate emails on shared Mailbox RRS feed

  • Question

  • We are using Exchange Server 2007 and outlook client is Outlook 2010.

    We are not using PST concepts(that is mails downloaded to local copy and remove from the Server).

    one of the shared mailbox is accessed by many people and they are receiving duplicate emails frequently on the shared mailbox.

    Is there any solution to stop receiving duplicate email.

    Thursday, June 19, 2014 9:47 AM

Answers

  • Exchange will only deliver "duplicate messages" if they are not sent at the same time.  If one message has the same mailbox as a recipient twice (such as individually and as a member of a distribution group), it will only place one in the mailbox.  Check your message tacking logs or the headers of the messages to see if these are indeed unique messages, or if they are delivered separately.
    Thursday, June 19, 2014 10:54 AM

All replies

  • Exchange will only deliver "duplicate messages" if they are not sent at the same time.  If one message has the same mailbox as a recipient twice (such as individually and as a member of a distribution group), it will only place one in the mailbox.  Check your message tacking logs or the headers of the messages to see if these are indeed unique messages, or if they are delivered separately.
    Thursday, June 19, 2014 10:54 AM
  • Hi,

    Agree with Willard. Please check if these duplicate messages have the same Message ID.

    If they are sent separately, we can't stop this. If they have the same Message ID, please check whether there is corrupted rules in Outlook.

    Besides, please check if there is any third party add-ins from Outlook user side. If the shared mailbox is accessed by 5 users, then we need to disable add-ins on these 5 users' Outlook client.

    Best regards,

    Belinda


    Belinda Ma
    TechNet Community Support

    Friday, June 20, 2014 6:28 AM
    Moderator