Are there rate limits on sending emails using the transactional API?
Hi
The transactional API is optimized to send transactional messages to one recipient at a time (ie order confirmations), and should not be used to send marketing blasts. They have a limit of 15 total recipients across To and BCC fields, a higher rate limit of 100 requests/second, and also have dedicated sending lanes to ensure a quick delivery.
I hope this clarifies!
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