If you do not activate your MasonLive account, you may miss important messages from your professors. Or if you are teaching, students may email your MasonLive account.
Users may opt to set up an inbox rule in MasonLive to forward email to their Office 365 account. Additionally, you may use an email client such as Outlook, which allows for multiple accounts to be accessed at once while keeping the mailboxes themselves separate. Most mobile devices also provide this functionality.