For Alumni, this is your preferred email address on record with the Harvard Alumni Association. For other Harvard users, this is the email address Harvard has on file for you.
For all users receiving an email with a HarvardKey claim confirmation code, look for a message from Harvard Identity & Access Management. It will have a subject line of Time-Sensitive: Complete Your HarvardKey Account Registration.
If you do not see the email it in your Inbox, please check your Spam/Junk/Clutter folder (depending on which mail client you use).