Rate limits

Each service plan comes with a rate limit which sets the maximum number of messages that can be sent per second. The rate limit is calculated from all messages sent via the API. For example, a batch with 10 recipients will count as 10 messages for rate limiting purposes.

Each service plan gets its own message queue served in first-in-first-out order. This means that new batches will be accepted immediately but might be delayed if earlier batches are still in the queue.

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