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Sometimes emails go to the wrong mailbox

    问题

  • Hi,

    Super strange issue here, sometimes UserA's email end up appearing in UserB's junk folder.

    UserA does have delegate permissions to UserB's mailbox - but that shouldn't cause this.

    UserA is the only person the email is to and UserA also have the email.

    There are no forwards on.

    There are no rules in place or OoF.

    There are no duplicate emails addresses, aliases, GUIDs and it does not happen to all emails. It did it this week for 4 emails in the period of an hour and then has not done it again since (yet, I say yet as this is not the first time).

    Looking in the message tracking logs, I can only see the emails from the external sender being delivered in to UserA's mailbox - nothing to UserB's.

    This is Exchange 2010 SP3 RU21.

    Anti Spam is not enabled.

    I have no idea how this is happening. UserA has been with the company for years so this mailbox was definitely upgraded from 2003 version which may have something to do with it - however, I have looked through ADSIedit and can't see anything that would indicate this behaviour.

    I am getting approval to turn on mailbox auditing for these two mailboxes - but that may take a while and once on, the issue could take a while to happen again.

    Any ideas what else this could be?

    Thanks - James.

    2018年7月13日 15:53

全部回复

  • Hi James,

     

    Based on my experience, for a shared mailbox, the messages sent from a shared mailbox may reside in the Sent Items folder of the your mailbox or the shared mailbox, but should not be saved in the junk folder. If this issue only affect the UserA and UserB you mentioned, please try to run the cmdlet below to repair these two mailboxes and check the result:

     

    New-MailboxRepairRequest -Mailbox ayla -CorruptionType ProvisionedFolder,SearchFolder,AggregateCounts,Folderview

     


     

    If this issue persists, I will also suggest you analysis mailbox auditing log if it logged any information about this:

     

    Search-MailboxAuditLog

    https://docs.microsoft.com/en-us/powershell/module/exchange/policy-and-compliance-audit/search-mailboxauditlog?view=exchange-ps

    Regards,

    Gavin Gao


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    2018年7月16日 5:24
  • Any update now?

    If the above suggestion helps, please be free to mark it as answer for helping more people.


    Regards,

    Gavin Gao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    2018年7月20日 8:43
  • Any update now?

    If the above suggestion helps, please be free to mark it as answer for helping more people.

    Regards,

    Gavin Gao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    2018年7月25日 8:07
  • Sorry no, I read that but was not logged in and forgot to reply.

    Thanks for the reply, but that is not the problem at all.

    Imagine UserA and SharedB for examples sake.

    Random emails sent in to UserA and only UserA say (from Hotmail, Gmail, Internally, Anywhere) usually go to UserA's inbox as they are the only recipient of said email.

    Sometimes UserA doesn't receive emails she is expecting... however, we have found a few of UserA's emails sitting in the Junk folder for the SharedB mailbox, as discovered by chance from a different users (UserC) PC who also have access to shared mailbox SharedB.

    We are not talking about sent items (which can be controlled by behaviour with an Exchange setting) but we are talking about Received items going to the wrong place.

    I had a look in the message logs but can't find any trace of the email being delivered to the SharedB mailbox.

    Therefore I wonder if this is something that is happening within the Outlook client.

    At the moment I have enabled Mailbox Auditing for both UserA and SharedB and we are waiting for this to happen again.

    Unfortunately the user in question is part time and this is a very intermittent issue so may take a while to see this happen again.

    2018年7月25日 8:47
  • Hi James,

     

    Thanks for your reply. I also suspect that this issue maybe related with the Outlook client, you can also create a new Outlook profile and check the result.

     

    Meanwhile, try to remove the permission from this shared mailbox and add it again.

    Regards,

    Gavin Gao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    2018年7月31日 7:57