The disclosed systems and techniques enable an enterprise system to store contact emails for users while avoiding storing and managing personal email addresses for the user. For example, the enterprise system may forward personal email addresses to an aliasing server configured to generate alias email addresses based on the personal email addresses. The aliasing server may operate as a “middle man” that receives emails directed to the email addresses and that forwards the emails to the personal email addresses (when appropriate). The enterprise system may store and maintain the alias email addresses in lieu of storing the personal email addresses.