If you were already using Outlook before you migrate to Exchange Online, you will need to delete your local auto-complete cache in Outlook so that any emails you create using the auto-complete address feature will get delivered correctly in Exchange Online.
(Exchange Online uses a different Global Address List (GAL) to the one your old Outlook mailbox was using. If you don't clear your old mailbox's cache, Outlook will still use your old address book infromation to auto-complete the email addresses, but Exchange Online won't understand where to send those emails and they won't arrive with your intended recipient(s), and you won't get a delivery failure notice.)
If you were already using Outlook before you migrate to Exchange Online, you will need to delete your local auto-complete cache in Outlook so that any emails you create using the auto-complete address feature will get delivered correctly in Exchange Online.
(Exchange Online uses a different Global Address List (GAL) to the one your old Outlook mailbox was using. If you don't clear your old mailbox's cache, Outlook will still use your old address book infromation to auto-complete the email addresses, but Exchange Online won't understand where to send those emails and they won't arrive with your intended recipient(s), and you won't get a delivery failure notice.)
Prior to migrating to Exchange Online, you'll need to ensure your @cam delivery address is set to 'firstname.lastname@admin.cam.ac.uk'.
Before you can log in to Office 365, OneDrive or Exchange Online email, you'll need to sync your Raven password with your University Microsoft account. This video explains how to check whether your password has been synced already, and if not, how to do so.
How to change your combined UIS Password, or your individual passwords for Raven athentication, Hermes email and Desktop Services accounts.