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Can an email be used as evidence before a French court? The answer depends on what needs to be proved: a legal fact, where evidence is free, or a legal act subject to a writing requirement. Here is an overview of the legal value of an email under French law, of the proof of sending and receipt, and of the cases where qualified electronic registered mail is preferable.

The legal value of email

Article 1366 of the French Civil Code (Code civil) provides the following:

“Electronic writing has the same evidentiary value as writing on paper, provided that the person from whom it originates can be duly identified and that it is created and stored in conditions that guarantee its integrity.”

Proof of a legal fact (harassment, conduct, correspondence) is free.

It may be established by any means.

Evidence in the form of ordinary emails may be sufficient, even when written by the party itself, as the judge assesses their credibility.

The Court of Cassation (Cour de cassation) has ruled that the principle that no one may create evidence for their own benefit does not apply to proof of a legal fact (Cour de cassation, 1st Civil Chamber, 1 October 2014, No. 13-24.699, unpublished, Judilibre).

For proof of a legal act which, under Article 1359 of the Civil Code, must be in writing, an email can serve as an electronic written document, but it must be possible to identify the sender and guarantee the integrity of the message (Article 1367 of the Civil Code).

In the event of serious dispute, ordinary screenshots or unsigned emails may be considered insufficient.

Proof of Sending and Receipt

What the sender must prove

The sender who relies on an email (formal notice, notification, etc.) must prove:

• At a minimum, that it was sent, with a complete copy of the email (including headers, server logs, automatic receipts, subsequent correspondence, etc.)
• And, where receipt is decisive, consistent circumstantial evidence of receipt (reply from the recipient, performance of what was requested, etc.)

What the recipient must show

The recipient who claims not to have received the email must support their denial with technical documents (records from the telecom provider, email history, IT certifications).

They must also point out any inconsistencies (incorrect address, impossible dates, a document clearly created for the purposes of the dispute).

The judge then weighs the evidence presented and adopts the most probable version, in accordance with Article 1368 of the Civil Code.

Furthermore, with regard to registered paper letters, the Court of Cassation has held that the signature on the acknowledgment of receipt is presumed to be that of the recipient or their authorized representative; it is up to the latter to prove the absence of authorization if this is disputed (Cour de cassation, 2nd Civil Chamber, 1 October 2020, No. 19-15.753, (B), Judilibre).

Moreover, a “reversal” of the burden of proof occurs when the recipient disputes receipt.

The recipient who denies having received the notification must, in accordance with the general rules of evidence, challenge the evidentiary value of the document presented.

Special Case: Qualified Electronic Registered Mail

If the notification is sent via qualified electronic registered mail (Article L. 100, R. 53 et seq. of the CPCE), the sending is treated as equivalent to a registered paper letter with acknowledgment of receipt, and the provider issues a certificate of delivery, receipt, or refusal/failure to collect, with a qualified timestamp that is retained for at least one year.

In this case, the sender benefits from organized proof of receipt; the recipient can only dispute it by challenging these technical elements.

Key takeaways

In conclusion, an email has real legal value, which is complete and unrestricted when it comes to proving legal facts, but more regulated and contested when it comes to proving legal acts — particularly beyond the threshold set by Article 1359 of the Civil Code, where the written document must meet the requirements of identification and integrity.

The recipient who claims not to have received the email cannot simply assert this: they must produce serious evidence to rebut the likelihood of receipt; the judge decides the matter based on the most probable version.

To ensure important notifications, it is often preferable to use qualified electronic registered mail (or a paper registered letter with acknowledgment of receipt), which provides structured proof of sending and receipt, and which, under Article L. 100 of the CPCE, is recognized as equivalent to registered mail.

Frequently asked questions

Does an email have legal value before a court?

Yes. Electronic writing has the same evidentiary value as writing on paper, provided that the person from whom it originates can be duly identified and that it is created and stored in conditions that guarantee its integrity.

Can you prove a fact using your own emails?

Yes, where a legal fact is to be proved. The Court of Cassation has ruled that the principle that no one may create evidence for their own benefit does not apply here. The judge then assesses the credibility of the emails produced.

How do you prove that an email was sent?

At a minimum with a complete copy of the email, including headers, server logs, automatic receipts and subsequent correspondence. And where receipt is decisive, with consistent circumstantial evidence such as a reply from the recipient or performance of what was requested.

What if the recipient claims not to have received the email?

They must support their denial with technical documents: records from the telecom provider, email history, IT certifications. They must also point out any inconsistencies. The judge then adopts the most probable version.

What is the difference between an email and qualified electronic registered mail?

Qualified electronic registered mail is treated as equivalent to a registered paper letter with acknowledgment of receipt. The provider issues a certificate of delivery, receipt or refusal, with a qualified timestamp retained for at least one year, which an ordinary email does not provide.