However, when User A enters User B's address in the From box of a new email message and tries to send that message, user A gets a nondelivery report (NDR) message that states that he or she does not have sufficient permissions. These symptoms don't occur in Microsoft Outlook Web App. User A can successfully send email messages after user A enters user B's address in the From box of an email message in Outlook Web App.
- In the new email message in Outlook, click From, and then click Other Email Address.
- In the Send From Other E-mail Address window, click From, change the address book to the global address list (GAL), and then select the user to whose mailbox you were granted Send As permissions. For example, select User B.
Article ID: 2679269 - Last Review: Dec 28, 2016 - Revision: 1