As long as your friend signs up for an account with the referral link in your invitation, you will earn referral bonus space. The email address your referral uses to sign up doesn't need to be the same as the email address you sent the referral invitation.
- Accepts your invitation to sign up for an account.
- Installs the Dropbox desktop app.
- Signs in from the desktop app.
- Verifies their email address.
If your friend receives referrals from multiple senders, only the sender of the referral link that is used will get bonus space.