SMTP (Simple Mail Transfer Protocol) is a widely used and reliable standard communication protocol for email transmission across the internet. The Infobip SMTP API builds on top of SMTP by providing a secure and scalable interface for sending emails.

The following sections provide a comprehensive guide on how to integrate with the SMTP API and to send emails over SMTP:

- [SMTP API integration](https://www.infobip.com/docs/email/email-over-smtp/smtp-api-integration)
- [Set up an integration with Infobip SMTP API](https://www.infobip.com/docs/email/email-over-smtp/set-up-integration-with-infobip-smtp-api)

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