Trueguard is described as 'Identifies suspicious and fake emails at signup. So you can focus on onboarding real users. Detect email quality and checking against our domain database. Analyse the user's IP address to determine if they originate from suspicious sources like a VPN or proxy' and is an website in the security & privacy category. There are more than 10 alternatives to Trueguard, not only websites but also apps for a variety of platforms, including SaaS, Windows, Mac and Android apps. The best Trueguard alternative is useBouncer. It's not free, so if you're looking for a free alternative, you could try Bouncify or Sabil. Other great sites and apps similar to Trueguard are Bounceless, Reacher, IPQualityScore and Email Verifier.