How to prove an ADR in Spain: three court rulings endorse Registered email as valid evidence
Proving a negotiation attempt through an ADR evidence (known in Spain as a MASC (Medios Adecuados de Solución de Controversia) before filing a civil lawsuit has been a major headache for lawyers and solicitors since the entry into force of the Organic Law 1/2025 on measures for the efficiency of the public justice service. Now, …








