Require a business email so partners sign up with their company address, not a free personal one such as Gmail or Outlook. It's useful for B2B programs where partners are agencies or businesses. This setting is part of Radar, Tolt's fraud protection.
Available on Pro and Enterprise plans.
Go to Program settings › Tracking & safeguards.
Under Referral safeguards, switch on Partners must use a business email.
Partners who try to sign up with a personal email address are asked to use a business one.
Good to know
The setting applies to new sign-ups. Partners who already joined keep their accounts.