If you have setup a shared mailbox in Outlook for Windows, you can change who new messages are sent from on a per-message basis with the following steps. These instructions are for the Outlook desktop application on Windows. You can also send messages from a shared mailbox via the Outlook Web App. For more information please see th related article Departmental Mailbox Access & Setup. Click the New Email button to open a blank message. Click the Options tab in the new message. Click From in the Show Fields section. This will add that option to your messages, including all future messages. Click the From button next to the field, and select Other Email Address. Any email addresses you've previously added to this field will show up as options as well. Enter the full email address of your departmental mailbox and click OK. Click the From button to choose the shared address from which you'd like to send the message. You will see the email address chosen reflected in the From field.
If you are having issues sending emails from a departmental or shared inbox, it may be caused by the way you have it setup in Outlook. (Note: This solution only works for Outlook Desktop. Outlook Web App issues may be caused by account errors.) Check to see how your account is setup First, you need to find out how your departmental account is setup in Outlook. macOS Open Outlook and click on File in the top left then click Settings Click on Accounts If your departmental inbox is shown here, then it is set up incorrectly and will not allow you to send emails from the inbox. This will require you to follow instructions in the related article Departmental Mailbox Access & Setup. Windows Open Outlook and click on File If your departmental inbox is shown here, then it is set up incorrectly and will not allow you to send emails from the inbox. This will require you to follow instructions in the related article Departmental Mailbox Access & Setup. If the account is setup correctly in Outlook, please reach out to the KU IT Customer Service Center at itcsc@ku.edu or by phone at 785-864-8080.