> For the complete documentation index, see [llms.txt](https://docs.emaildelivery.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emaildelivery.com/docs/transactional.md).

# Transactional

- [Transactional API](https://docs.emaildelivery.com/docs/transactional/transactional-api.md)
- [Transactional SMTP Relay](https://docs.emaildelivery.com/docs/transactional/transactional-smtp-relay.md)
- [Transactional SMTP Relay: steps to start sending](https://docs.emaildelivery.com/docs/transactional/transactional-smtp-relay-steps-to-start-sending.md): Everything you need to know to configure a connecting application to send email through your platform using transactional SMTP Relay
- [Transactional templates](https://docs.emaildelivery.com/docs/transactional/transactional-templates.md)
- [Transactional tags](https://docs.emaildelivery.com/docs/transactional/transactional-tags.md)
- [Use SWAKS for testing and troubleshooting](https://docs.emaildelivery.com/docs/transactional/use-swaks-for-testing-and-troubleshooting.md)