Email API vs. SMTP: Which Should You Actually Use?
When your app needs to send email, you face an old fork in the road: the classic SMTP protocol or a modern email API. The right choice depends on what you're actually doing.
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Email API
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Transactional vs. Marketing Email: Why You Must Keep Them Separate
Mixing your password resets with your promotions on the same sending infrastructure is a quiet way to break both. The two email types have opposite requirements — and they need separation.
