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.”


Then click on OK.


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.


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:



Re-launch Outlook, and try again.

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

You may also like:

Migrate email to Office 365 using WHM If you are like me, then you are simply wanting to migrate your email over to Microsoft Office 365 to take advantage of Exchange. Me and my colleague ...
TheITBros Microsoft Office 365 Migration Guide We just migrated a company to Microsoft Office 365 and we thought we would share our experience and troubleshooting tips. We hope this saves you some ...
Grant Full Access to All Mailboxes in Exchange 200... This is a short tutorial on how to add full access to all mailboxes in Exchange 2007 and 2010 for a an additional user. This can come in handy when sa...
Add Calendar Permissions in Office 365 via Powersh... This is a tutorial on adding calendar permissions in Office 365 for your users via Powershell. You can add permissions onto a specific mailbox, or you...
Don’t Archive Notes in Office 365 Are your notes suddenly disappearing in Office 365? That's probably because you have enabled archiving in the Exchange Admin center with a retention p...
READ ALSO  Configure MMC Snap-ins on Fresh Windows 7 Install
  • 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.