How to Send Emails from Netlify using SMTP or email API

Email functionality in React applications hosted on Netlify can be implemented through Netlify Forms, Mailtrap SMTP with Nodemailer in Netlify Functions, or Mailtrap’s Email API. Netlify Forms is suited to simple contact forms because it captures deployed static HTML form submissions and can send basic notification emails, while React single-page applications require a hidden static form in index.html so Netlify can detect it during builds. More customizable workflows use serverless functions triggered by form-submission webhooks, with SMTP credentials or API tokens stored securely as Netlify environment variables. Both Mailtrap integrations support plain-text and HTML messages, attachments, and multiple recipients, while Mailtrap logs and Netlify function logs help verify delivery and troubleshoot issues. The approaches can be combined within one project depending on whether a form needs simple notifications, customized transactional messages, or API-based email delivery.

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