If it doesnt have an onmicrosoft email address, can you add a secondary email and send to that? Select the user you want, expand Mail Settings, and then select Edit next to Mailbox permissions. With the exception of X.400 addresses, Exchange doesn't validate custom addresses for correct formatting. By default, this box is selected. This Receive connector accepts anonymous SMTP connections from external servers. Under Message Delivery Restrictions, click View details to verify the delivery restrictions for the mailbox. You can forward the messages to any valid email address or distribution list. Senders who don't require message approval: To add people or groups that can bypass moderation for this group, click Add . Configure mail flow and client access on Exchange servers After you've added all of the Mailbox servers that you want to configure, click OK. Note that cross-geo mailbox auditing is not supported. If sharedmailbox@<domain>.com is used by an external sender, they get an NDR saying that the sharedmailbox/server could not be found at <domain>.mail.onmicrosoft.com. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. For more information, see Default settings for Exchange virtual directories. You can further limit who can send messages to the group by allowing only specific senders to send messages to this group. Under Members, you can add members by clicking Add . The dialog box displays all OUs in the forest that are within the specified scope. Shared mailbox cannot receive external emails - Microsoft Dynamics CRM Select Add. Select Add permissions, then choose the name of the user or users that you want to allow to send email on behalf of this mailbox. Group owners don't have to be members of the group. Hide this group from address lists: Select this check box if you don't want users to see this group in the address book. All groups must have at least one owner. To see what permissions you need, see the "Recipient Provisioning Permissions" section in the Recipients Permissions topic.
