Do you need to request a .edu alias for you partners.org email address?
To request that a *harvard.edu address is assigned to your Partners Outlook account, contact the IS Service Desk: https://www.partners.org/isservicedesk and Open a ticket with Outlook Support-PHS.
In your request, be sure to include your Partners ID and state whether you want the harvard.edu address as a Primary address or just an additional address.
* The address will be bwh.harvard.edu or mgh.harvard.edu or mclean.harvard.edu, depending on your institution.
See more in the How to request a harvard.edu email address KnowledgeBase article.