365-error

Office 365 – “This message could not be sent. Try sending the message again later”


Error Message: This message could not be sent. Try sending the message again later, or contact your network administrator. Error is [0x80070005-00000000-00000000]. You might be receiving this when trying to send from a shared mailbox in office 365 or trying to send FROM a distribution list. This is most likely due to the address book GAL not updating. There are a couple things you can try.

Office 365 Instructions to Fix Error

Solution 1

First, try updating the address book by going to the Send/Receive tab and clicking on “Download Address Book.”

download-address-book

Then click on OK.

office-365-offline-GAL

Now try sending again from Outlook using your shared mailbox or in the FROM address with a distribution list. Also, try grabbing the FROM address from the Global Address list instead of the GAL.

global-address-list

Solution 2

Close Microsoft Outlook and try deleting everything within the “Offline Address Books” folder. It will re-populate.

In Windows 8 it is located here:

C:\Users\Username\AppData\Local\Microsoft\Outlook 

offline-address-books

Re-launch Outlook, and try again.

If the above information helped you, make sure to check out our official Office 365 Migration Guide.


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  • Kristian Poulsen

    Make sure the user who has problem sending mails from the shared mailbox has “send as” rights. This solved the problem for us (for now at least)

    • Jose E Calderon

      Where is this setting found?

      • Joe Soap

        powershell command.

        Add-RecipientPermission -Trustee -AccessRights sendas

  • tdhaslett

    Even after going through both solutions a day after first setting up the distribution group and permissions, it did not solve this issue for me.

    What did solve it was first going to OWA and sending a message from the DG and then repeating Solution 1 in Outlook.

  • Frank Becker

    I found here 10 other possible solutions to the issue: http://www.admin-enclave.com/en/articles/exchange/292-resolved-you-do-not-have-the-permission-to-send-the-message-on-behalf-of-the-specified-user.html in my case KB KB 3045224 solved the problem.