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No signature is applied to Internal emails when undeliverable journal reports are sent to an internal mailbox

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Exclaimer Support
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Relevant products: Exclaimer Cloud - Signatures for Office 365

Scenario

Emails sent from an internal user to another internal user do not receive a signature or are not routed to Exclaimer Cloud.

Reason

Undeliverable journal reports are being sent to an internal mailbox and this has a side-effect of causing some unexpected mail routing.


JournalNdrTo.png

 

Resolution

Note: For more information, see Transport and mailbox rules in Exchange Online or in on-premises Exchange Server don't work as expected.

This solution applies even if message journaling is not enabled.

To resolve this issue, you need to specify a dedicated mailbox, as the recipient for Journal Report NDR messages, in Office 365 using the Windows Powershell.


To do this, you need to:

Install the Exchange Online PowerShell module

Connect to Exchange Online

Specify a dedicated mailbox

To complete the steps described below, you will need:
Office 365 Global Administrator credentials


To Install the Exchange Online PowerShell V2 module: 

  1. Open the Windows PowerShell and run this command as an Administrator:

    Install-Module -Name ExchangeOnlineManagement

  2. Confirm that you want to install this PowerShell module.

    Note: For additional installation options, see ExchangeOnlineManagement.

     

To connect to Exchange Online: 

  • If you have Multi-Factor Authentication enabled, run this command:
     

    Connect-ExchangeOnline -UserPrincipalName <UPN> -ShowProgress $true


    In <UPN> enter your username.
  • If you don't have Multi-Factor Authentication enabled, run this command:
     

    Connect-ExchangeOnline -Credential $UserCredential -ShowProgress $true


    When prompted, enter your password (and the Multi-Factor Authentication verification code if required).

To specify a dedicated mailbox:

Run the following command: 

set-transportconfig -JournalingReportNdrTo <user@contoso.com>

<user@contoso.com> is the email address of the user. 

Tip! Microsoft recommends that the JournalingReportNdrTo recipient is set to an external email address or that a dedicated mailbox is created, which has no transport or mailbox rules applied.

 

 


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