A Swagger documentation is already available here, so this part only contains quick description of each method.

Send: /send

Allows to send an email. Depending on the provider, the destination address has to be validated, or the email will be unauthorized.

Validation: /validation

Some providers does not allow email sending to addresses that have not been validated before (AmazonSES for example). To check the validation status of an address, use GET /validation/{address}. To validate an address, use POST /validation/{address}. An email will be send to the specified address, asking if wanted to be white-listed.