Limitation on sending data in SOA client

I have an application that retrieves data from a specific database and through a SOA client sends this data to the integration, I have several threads sending instantiating this client and sending this data in parallel. However, the amount of submissions is being limited to 1,000,000 per hour, so when I reach this limit, I will have to send the registrations in the next submission and so on. What implementation/technology can I use to ensure that all records are submitted?