A method for deposit of an electronic payment order by a first intermediary processor among a plurality of intermediary processors linked by a communication network. A routing message is received at the first intermediary processor, the message identifying one or more deposit target processors accessible through the network via the second intermediary processor and providing a respective secure identifier for each of the accessible deposit target processors. When the first intermediary processor receives the electronic payment order drawn on a specified one of the deposit target processors conveyed over the network from a depositing processor, it clears the payment order intermediary processor by checking the payment order against the secure identifier of the specified deposit target processor provided in the routing message. Responsive to clearing the order, the first intermediary processor transfers payment to the depositing processor, while conveying the payment order over the network to the specified deposit target.