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https://designmodo.com/sendinblue-alternatives/
In this article, we’ll review all these alternatives and uncover their features, limitations, and pricing.
I have been very happy with Brevo because they seem to be the only platform which supports idempotency headers to avoid sending duplicate emails to customers.
We had incident last year where I accidentally scheduled 32 emails to the customers and it was very a frustrating moment 😄
east or west resend is the best