Article 44 of the eIDAS Regulation: What the Law Says About Electronic Registered Mail
Electronic registered mail is not a marketing invention: it is a service governed by European legislation. A clear-language breakdown of Article 44 of the eIDAS Regulation.
The eIDAS Regulation in brief
The eIDAS Regulation (Electronic IDentification, Authentication and trust Services) is the founding text of digital trust in Europe. Adopted on 23 July 2014 and applicable from 1 July 2016, it is directly applicable in all 27 Member States of the European Union — no national transposition is required.
Its purpose: to create a unified legal framework for digital trust services, so that electronic transactions enjoy the same legal certainty as paper transactions. It covers electronic signatures, electronic seals, electronic timestamps and — the subject of this article — electronic registered delivery services.
The Regulation consistently distinguishes two service levels: “simple” and “qualified”. This distinction is fundamental, because it determines the legal value attached to the service.
💡 What about eIDAS 2.0?
Regulation (EU) 2024/1183, in force since 20 May 2024, extends the eIDAS framework — notably with the European Digital Identity Wallet (EUDI Wallet). It does not change the architecture described in this article: the requirements of Article 44 and the presumptions of Article 43 remain unchanged.
What does Article 44 say? A point-by-point breakdown
Article 44 of the eIDAS Regulation sets out the requirements an electronic registered delivery service must meet to be considered qualified. Here is what it imposes, in plain language.
1. Qualified Trust Service Provider (QTSP)
What the text says: The service must be provided by one or more qualified trust service providers.
What it means: Not just anyone can offer a qualified electronic registered delivery service. The provider must be a QTSP (Qualified Trust Service Provider) — an entity certified and regularly audited by a conformity assessment body accredited at European level. The list of QTSPs is public and consultable on each Member State’s Trusted List.
2. Reliable identification of the sender
What the text says: The sender must be identified with a high level of confidence.
What it means: The service must guarantee that the sender of the registered mail is who they claim to be. This is the most demanding requirement in Article 44: it generally implies a formal identification process of the KYC (Know Your Customer) type, or authentication through a national electronic identity (eID). In concrete terms, the sender must prove their identity to the provider before being able to send registered mail — a step that carries a cost, and which largely explains why fully qualified services operate on a subscription basis.
3. Reliable identification of the recipient
What the text says: The recipient must be identified before the data is delivered.
What it means: Before being able to access the registered document, the recipient must be identified with a high level of confidence. In practice, this identification takes the form of an electronic signature applied to an acknowledgement of receipt: the recipient proves their identity before obtaining access to the content. The level of identification varies depending on the signature method used (simple, advanced or qualified).
4. Securing the send and the receipt
What the text says: The sending and receiving of data must be secured by an advanced electronic signature or an advanced electronic seal.
What it means: The sending and receiving process must be protected by cryptographic mechanisms that guarantee the integrity of the data transmitted. No one must be able to intercept or alter the document in transit.
5. Protection against modification
What the text says: Any modification of the data sent or received must be clearly indicated.
What it means: This is the role of the Qualified Electronic Timestamp and the digital fingerprint (hash). The timestamp embeds a unique fingerprint of the document: if someone modifies the document, even by a single character, the fingerprint no longer matches and the timestamp becomes invalid. Tampering is immediately detectable.
6. Qualified Electronic Timestamp
What the text says: The date and time of sending, receipt and any modification must be indicated by a qualified electronic timestamp.
What it means: The date and time are not declared by the sender or the provider: they are certified by a Qualified Electronic Timestamp issued by a QTSP. It is the digital equivalent of a notarised date stamp. This time certification is essential, because it determines the starting point of legal deadlines (notice periods, limitation periods, and so on).
Article 43: the legal presumption
Article 44 sets out the technical requirements. But it is Article 43 that gives electronic registered mail its legal force.
Article 43 establishes two levels of legal protection:
Article 43.1 — All electronic registered mail
Electronic registered mail, even when not qualified, cannot be denied legal effect solely on the grounds that it is in electronic form or that it does not meet the requirements of Article 44. It is admissible as evidence before the courts of all Member States.
Article 43.2 — Qualified registered mail only
Article 43.2 goes further and establishes a legal presumption reserved for fully qualified services:
- ✅ Presumption of data integrity
- ✅ Presumption of sending by the identified sender
- ✅ Presumption of receipt by the identified recipient
- ✅ Presumption of accuracy of the date and time of sending and receipt
⚖️ Reversal of the burden of proof
This legal presumption is the core of the legal value of qualified electronic registered mail. In concrete terms: it is up to the party challenging the validity of the registered mail to prove there is a problem — not up to you to prove it is valid.
Without this presumption (the case of non-qualified registered mail), the mail remains admissible but its evidential weight is left to the judge’s assessment. This is why the qualified components built into the process — such as the Qualified Electronic Timestamp — matter: they considerably strengthen the evidential value of your send, even without full qualification of the service.
Article 41: the timestamp’s own presumption
A frequently overlooked point: Article 41 of the eIDAS Regulation establishes a standalone legal presumption attached to the Qualified Electronic Timestamp itself — regardless of whether the registered delivery service is qualified or not.
⚖️ What Article 41 says
A Qualified Electronic Timestamp benefits from a presumption of accuracy of the date and time it indicates, and a presumption of integrity of the data to which it is linked. This presumption is recognised in all 27 Member States.
This distinction matters in practice. A service that is not qualified under Article 44 but applies a Qualified Electronic Timestamp to the transmitted document benefits, for that specific component, from a legal presumption of date and integrity. That is a markedly higher standard of proof than a simple email with a read receipt.
What Article 41 does not cover: identification of the parties. That is precisely what the full presumption of Article 43.2 adds — and it remains reserved for fully qualified services.
Qualified vs non-qualified: the practical consequences
The distinction between qualified and non-qualified electronic registered mail is not merely a technical subtlety — it has direct legal consequences.
| Criterion | Non-qualified registered mail | Qualified registered mail (Article 44) |
|---|---|---|
| Admissibility in court | ✅ Yes (Article 43.1) | ✅ Yes |
| Full legal presumption | ❌ No — the judge assesses freely | ✅ Yes — integrity, identification and date (Art. 43.2) |
| Presumption linked to the timestamp | ✅ Yes, if a Qualified Electronic Timestamp is applied (Art. 41) | ✅ Yes (Art. 41 and 43.2) |
| Burden of proof | On you, except for the qualified components | On the challenging party |
| EU recognition | Admissible in all 27 Member States | Presumption in all 27 Member States |
| Equivalence to postal registered mail | ❌ Not recognised | ✅ Recognised in certain countries (e.g. France) |
💡 The important nuance
Between “basic” non-qualified registered mail (a simple email with a read receipt) and a fully qualified service, there is a middle ground: a non-qualified service that nonetheless integrates qualified components — such as a Qualified Electronic Timestamp issued by a certified QTSP. Such a service does not obtain the full presumption of Article 43.2, but its evidential value is markedly higher than a send with no qualified component, because the judge has certified elements of trust on which to assess the reliability of the send.
Cross-border recognition
One of the major contributions of the eIDAS Regulation is mutual recognition between Member States. Qualified electronic registered mail issued in one Member State is automatically recognised in the other 26, with the same legal presumption.
But cross-border recognition also applies to non-qualified services: Article 43.1 guarantees that all electronic registered mail is admissible as evidence in every Member State, and cannot be refused solely on the grounds of its electronic form.
For businesses operating in several European countries, the eIDAS framework offers a uniform, legally recognised channel across the entire Union — a considerable advantage over international postal registered mail, which is subject to procedures that vary from country to country.
National specificities
The eIDAS Regulation is directly applicable, but Member States retain some latitude to regulate certain specific situations.
🇫🇷 In France
France has supplemented the eIDAS framework with Article L.100 of the Postal and Electronic Communications Code (CPCE) and the decree of 9 May 2018. Qualified Electronic Registered Mail (LRE) is legally equivalent to postal registered mail with acknowledgement of receipt (LRAR). Providers must be qualified by ANSSI to offer LRE in France.
🇧🇪 In Belgium
The eIDAS Regulation applies directly. However, Belgian law maintains a partial bpost monopoly for registered items relating to judicial and administrative procedures. In contractual matters (termination, formal notice between private parties, B2B communications), electronic registered mail is a fully valid alternative.
Other Member States
Each Member State may have specific rules for certain procedures (judicial, administrative, tax). The eIDAS framework remains the common basis, but it is advisable to check local rules for high-stakes procedures.
e-Signature.eu’s positioning
e-Signature.eu is not a fully qualified electronic registered delivery service within the meaning of Article 44. This is a deliberate choice: full qualification entails costs and constraints — notably formal identification of the sender through KYC or eID — that feed through to the final price. This is why fully qualified providers generally operate on a subscription basis.
e-Signature.eu takes a different approach: integrating the most decisive qualified components into an accessible, subscription-free service.
| Component | What e-Signature.eu does | Level |
|---|---|---|
| Document timestamping | Qualified Electronic Timestamp issued by a certified QTSP | ✅ Qualified (Article 41 eIDAS) |
| Integrity protection | Digital fingerprint (SHA-256 hash) embedded in the timestamp | ✅ Guaranteed by the qualified component |
| Recipient identification | Signature of the acknowledgement of receipt (OTP, Veriff, itsme®, Evrotrust) | ✅ eIDAS signature (SES, AES or QES depending on method) |
| Sender identification | Professional account with verified email address | ✅ Suited to businesses (legal entity) |
| Secure transmission | SSL/TLS encryption | ✅ Industry standard |
| Process traceability | Timestamped Audit Trail of every step | ✅ Complete evidence file |
💡 Why this approach?
The Qualified Electronic Timestamp is the component that gives your send the greatest evidential value: it certifies the date, protects the integrity of the document and benefits from its own legal presumption (Article 41 eIDAS). Combined with an acknowledgement of receipt signed by the recipient, it forms a solid evidence file.
On the sender’s side, the email address is verified before any send and the professional account identifies the legal entity (company name, contact details). For the service’s core audience — businesses, freelancers and liberal professions — it is the professional entity that is the sender of the registered mail, as is the case with postal registered mail, where it is the company name that appears on the receipt rather than the identity of the employee who dropped off the letter.
The result: electronic registered mail that is admissible as evidence (Article 43.1), reinforced by a Qualified Electronic Timestamp carrying a legal presumption (Article 41), verified sender identification, a signed acknowledgement of receipt and a complete Audit Trail — all for less than €2 excl. VAT, with no subscription.
For situations requiring a fully qualified service (Article 44) — such as ANSSI-qualified LRE in France — a provider certified for that specific service is necessary.
Key takeaways
- Article 44 eIDAS defines the qualification requirements: formal identification of the parties, securing of the send, protection against modification and a Qualified Electronic Timestamp. A service meeting all these requirements is described as a “qualified electronic registered delivery service”.
- Three articles, three levels: Article 43.1 guarantees that all electronic registered mail is admissible as evidence. Article 41 confers a presumption specific to the Qualified Electronic Timestamp. Article 43.2 adds a full presumption reserved for fully qualified services.
- Qualified components strengthen the evidence: A Qualified Electronic Timestamp benefits from its own legal presumption (Article 41) and considerably strengthens the evidential value of a send, even without full qualification of the service.
- Sender identification is the sticking point: It is the Article 44 requirement that is most costly to satisfy (KYC or eID), and the main reason fully qualified services operate on a subscription basis.
- Recognition across the EU: All electronic registered mail is admissible in the 27 Member States. Fully qualified services additionally benefit from automatic recognition of the legal presumption.
- National specificities persist: France requires ANSSI qualification for LRE, Belgium maintains the bpost monopoly for judicial procedures. The eIDAS framework is the common basis.
Send electronic registered mail with a Qualified Electronic Timestamp
Qualified Electronic Timestamp, signed acknowledgement of receipt and complete Audit Trail — included automatically. For less than €2 excl. VAT, no subscription.