Electronic Signatures
Sign your documents with Email OTP
EMAIL OTP is an electronic signing method based on a One Time Password sent to the email address of the registered signer. People can sign your documents from anywhere in the world.
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User friendly
EMAIL OTP is easy to use. Your signers must go through a limited number of steps which results in a high conversion rate and a secure yet frictionless experience.
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Accessible
EMAIL OTP Is a worldwide signing method. Any person that has a mobile phone can sign your documents digitally.
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Strong validation of Identity
The EMAIL OTP signing method is legally binding according to eIDAS.
Legally binding electronic signature
eIDAS forms a legal framework for accepting electronic identities and signatures in Europe. According to this regulation, the email OTP signing solution is among the most advanced Simple Electronic Signatures (SES) methods available through Nitro Sign.

Keep documents and eSignatures secure and compliant with industry regulations

Integrated in the most innovative and agile electronic signature solution.
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eIDAS, eSIGN Act, UETA, Singapore Law, Hong Kong, ZertES (Swiss), GDPR compliant.
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Combine email OTP with other signing methods.
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Easy integration via API or use the stand alone portal.
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Personalize the solution to your branding

FAQs about Email OTP

What is Email OTP?
Email OTP is an electronic signing method based on a One Time Password sent to the email address of the registered signer/signatory. This signing method will ask the signatory to fill in the full email address to verify their identity and then request the signatory to input the code sent to that email address to sign the document.
How does signing with Email OTP work?
Signing documents electronically with an email OTP is extremely user-friendly and straightforward. The signer will be prompted to confirm their email, then be sent a one time password via email to complete the signing request. The signing method is one of the available signature methods in Nitro Sign, our electronic signatures platform.
What are the Advantages of Email OTP?
  1. This signing method offers wide coverage as anybody with an email address can sign with an email OTP.
  2. People can sign your documents from anywhere in the world. Most countries are by default supported in Nitro Sign. The only thing your signers need is an email address.
  3. It is also a very user-friendly signing method as signers do not require additional tokens or smart-card readers.
  4. Signers are offered a very intuitive and user-friendly signing method whilst also providing a strong validation of their identity.

Is signing with Email OTP legally binding?
The answer is yes! In Europe, the US and a vast majority of countries around the world, digital signatures are legally binding and recognized in their local legislations like UETA eSign Act in US & Canada, eIDAS in Europe, ZERTES in Switzerland.

Let´s take a closer look to the Electronic Identification and Trust Services Regulation (eIDAS Regulation 910/2014/EC). eIDAS forms a legal framework for accepting electronic identities and signatures in Europe. According to this regulation, the EMAIL OTP signing solution is among the most advanced Simple Electronic Signatures (SES) methods available through Nitro Sign. And there is even more, when customers implement an onboarding procedure, where the email address is linked to the identity of the person, the SES status can even be upgraded to an AES (advanced electronic signature) status.

If you want to know more about the different signing methods that Nitro Sign offers and their legal validity, you should definitely read our legal whitepaper conducted by DLA Piper.
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