S/MIME Email Certificates are affordable solutions for client authentication, document signing, Email signing & Email encryption. These certificates digitally sign Email, allow you to authenticate yourself as the sender and make Email impossible for anyone to alter its contents. It can also guarantee privacy by ensuring your message cannot be intercepted and read by anybody except the intended recipients. Furthermore, S/MIME Email Certificates allow you to sign important document to prove it has not been tampered with since it was signed.