DomiSMP (Domain Interoperability Service Metadata Publisher) is a sample implementation provided by the European Commission as part of the eDelivery Building Block. It is responsible for capability lookup, allowing a sender to retrieve necessary metadata about a receiver's location and capabilities once the receiver's SMP address is discovered. DomiSMP acts as a register of message exchange capabilities and locations of participants within a distributed network. It is based on the eDelivery SMP profile.