Best Email APIs

Best Email APIs to send transactional or marketing emails as well as validate email addresses.
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Best Email APIs

Email is essential to pretty much every application. Consumers use their email addresses as login for applications and expect to receive notifications and messages. Use email validation APIs to block account creation with temporary or fake email addresses. Use email APIs to send transactional emails such as password resets or notifications and marketing emails such as newsletters.

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OAuth2 Authentication