As a consequence of the Frozen Email change, some users Primary Email addresses in AIMs may no longer match any email addresses added to their Canvas profile.
If this occurs, and the user responds to a Canvas notification/message from Outlook, they will receive the following error:
The message you sent with the subject line "Subject Line" was not delivered. To reply to Canvas messages from this email, it must first be a confirmed communication channel in your Canvas profile. Please visit your profile and resend the confirmation email for this email address. You may also contact this person via the Canvas Inbox. For help, please see the Inbox chapter for your user role in the Canvas Guides.
In order for Canvas to recognize the email coming back in from Outlook, the email address that is sending it much match an email address that is associated with the Canvas user. Because of the use of different email aliases within the university, these can get out of sync.
To resolve this, the user will need to add an additional email address to their Canvas profile - instructions for this process can be found here: https://community.canvaslms.com/t5/Student-Guide/How-do-I-add-an-additional-email-address-as-a-contact-method-in/ta-p/412
They should enter their primary email address that you see in the "sent" line - you can look this up via AIMs and provide it to the user. Make sure that the user also confirms that email address via the email notification they should receive from Canvas identifying that they have added the email.
IMPORTANT: Ensure that as part of this process, the user does not change which email address is "starred" in Canvas - doing so can break the connection with other tools and Canvas, such as Zoom/Panopto/Publisher Materials.