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Can an email be a legally binding contract?

19.10.2025 | Autor: Róbert Hronček
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If we can close a deal via email today but have to spend months proving that we actually closed it, the problem isn’t with the technology—it’s with the law.

Can an email be a legally binding contract?

Digital communication is the norm and is often sufficient for reaching an agreement. However, an email is not a “contract” in and of itself—what matters is clear acceptance and the ability to prove who confirmed what.

The issue usually lies with the sender’s identity and evidence. An email address is not enough; original messages with headers and technical traces (SPF/DKIM/DMARC) are helpful. The difference between “we acknowledge” and “we confirm” can be decisive in a dispute.

In practice, therefore: for standard B2B transactions, clear acceptance and proper archiving are sufficient; for larger contracts, it is safer to use a formal document with a qualified electronic signature.

In the future, legislation should unequivocally recognize email with the essential elements of a contract and a qualified signature as a written form. Fewer disputes, more legal certainty.

You can read the full article at Forbes.sk

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Róbert Hronček

Róbert Hronček

He graduated from the Faculty of Law at Matej Bel University in Banská Bystrica (2009), where he also successfully defended his master’s thesis on the topic “Trade Names and Their Legal Protection.” In 2011, he completed his postgraduate studies at the Faculty of Law of Matej Bel University in Banská Bystrica, defended his postgraduate thesis on the topic “Trademarks and License Agreements,” and passed the postgraduate examination in the field of commercial law. From September 2005 to June 2009, he completed his legal internship at the District Court in Banská Bystrica. From October 2005 to June 2006, he worked as a legal assistant at the law firm of JUDr. Jozef Zlocha. From September 2009 to March 2011, he worked as a trainee attorney at the law firm BÖHM & PARTNERS in Bratislava, and from March 2011 to April 2013 as a trainee attorney at the law firm of JUDr. Kvetoslava Kolínová in Žilina. He has been a lawyer since 2013. He focuses primarily on commercial law, particularly contract law, substantive civil law, labor law, and corporate law. One of his specializations is also unfair competition law and intellectual property law. He provides legal services in Slovak and English.