Our organization wants to use SalesForce as gateway for sending bulky amount of personalized emails over API.
Amount is 50K-500K emails per each sending. So far we use SendGrid transactional emails for this purpose. We want to allow sending through SalesForce too.
Is this possible?
We would either:
send every email individually with 20 threads concurrently
send emails in batches of N emails per batch and lower concurrency
Also I would be very glad to know a proper way to find delivery status for each of the emails.