Onboarding process to become a Document Sender

Diagram: DocSender onboarding process

DocSender initial request

In practice, a new e-Box integration request can be sent to eBoxIntegration@smals.be. The first mail should explain in a high-level way what is expected as a new e-Box DocSender, for which business/use cases, a first idea of the volume (number of documents sent, moment of possible load peaks…) and the expected planning. Questions can be adressed to this functional mailbox as well.

Agreement in principle of the NSSO

Before starting any integration, it is necessary to obtain a first agreement in principle from the NSSO. This agreement will be requested by the eBoxIntegration team to the NSSO e-Box managers.

Formal request

A formal request must then be submitted via an online form in order to become a new e-Box docSender:

If there is a problem with the online form, you can download the offline form as a docx file and send it completed to eBoxIntegration@smals.be.

Request validation

The eBoxIntegration team is responsible for technically validating the received form. A formal validation of the NSSO is confirmed at this stage. Once validated, the form is sent back to you as soon as the configuration is ready to be used.

Order your X.509 certificate

In order to call the e-Box Publication service, you will need a X.509 certificate. Any official issuer is acceptable. Please avoid to use a self-signed certificate. Please pay attention to respect the expected format. It’s also important to have a distinct certificate for each work environment (Acceptance, Production). Once you receive your order, send the public part of the certificate to eBoxIntegration.

e-Box technical integration and tests

Once the needed configuration is ready, you can proceed to the technical integration with the e-Box system. A very important point is then to test and check that your integration with the e-Box system matches what you wanted. You can request to have test cases via eBoxIntegration@smals.be.

Go to next environment

When your tests are completed and conclusive, you can request to move to the following environment (Acceptance; Production), still via eBoxIntegration@smals.be.


Once the configuration is ready in the Production environment, your integration with the e-Box system can go “live”. Congratulations, your organization is now a new e-Box DocSender!