Function isFreeEmailDomain

server/src/utils/email-domain.ts:73–75

(domain: string)

 * (gmail.com, yahoo.com, hotmail.com, etc.)
 */
export function isFreeEmailDomain(domain: string): boolean {
  return freeDomainsSet.has(domain.toLowerCase());
}

/**
 * Check if an email is from a free/personal email provider