Custom Esignature helps professionals create branded email signatures that can include contact details, links, calls to action, and consistent visual identity. It is a natural fit for consultants, agencies, sales teams, recruiters, and small businesses that want every email to support brand trust and lead generation. Its affiliate program is relevant for public through Rewardful and works for publishers covering business communications and professional productivity tools. The signup program states 30% commission for the first year of a referral, a 60-day tracking cookie, and a $50 minimum payout.