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How to Pick a Transactional Email API for Healthtech Apps in 2026

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Choosing a transactional email provider for healthtech applications requires more than a feature comparison — it demands verifiable, auditable delivery evidence. The ideal provider must support API sending, versioned templates, verified-domain operation with DKIM rotation, suppression handling, and retrievable delivery records. Developers are advised to run a small, controlled experiment using a synthetic recipient and a correlation ID before committing to any provider in production. Google's sender authentication requirements mean domain verification should be treated as a core setup step, not an afterthought. Infrai is highlighted as a viable option for teams prioritizing auditability, while providers with SMTP migration or webhook automation support remain preferable for teams that need those capabilities.

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How to Pick a Transactional Email API for Healthtech Apps in 2026 · ShortSingh