Registered email (Aangetekend Mailen) overview

Registered Email service helps companies with digitizing important document flows in a secure and easy way with GDPR compliance. In addition, Registered Email provides an enhanced proof of delivery, in line with the EU 910/2014 regulation (eIDAS).

For Sender:

This service can be integrated into your existing systems used in your organization.

  • Following a regular email process, you can prepare the registered email and send it to the recipient within the trusted email environment with just one push of a button.
  • You can follow the status of the email in real-time with the ticket using your email account, which also provides a legal proof of delivery.

For Receiver:

The users can read and accept the registered e-mails using their own trusted email client.

After receiving the announcement, the user may request or refuse it. If accepted, the user receives the original email from the sender immediately and securely.


Send a Registered Email with proof of delivery
Digital Document Sign Service (contact Registered Email)
Secure Large File Transfer (contact Registered Email)

Working with Registered Email

To ensure a smooth start with the Registered Email API, your business should meet the following conditions:

  • Good knowledge of automation.
  • Experience with JSON
  • Permanently available security expertise to use Registered Email API and safeguarding its security.

Connecting with Registered Email

To connect with Registered Email you need an EV SSL certificate for transport.

Rabobank accepts:

  • EV SSL certificates from the certificate issuers listed in the Mozilla CA Certificate report.
  • X.509 format
  • RSA: key length should be at least 2048-bit
  • Certificate should be valid for a maximum of one year.

You are responsible for the application, certificate purchases, and other costs involved.


Rabobank partner APIs are self service and easy to use, if you require assistance feel free to contact our support.

Get in touch

Contact us to connect with the Registered Email API.