Profile Requirements
To deliver a message to a recipient over Mailjet, Courier must be provided the recipient’s email address. This value should be included in the recipient profile asemail.
Override
You can use a provider override to replace what we send to Mailjet’s Send API. For example, you can add an attachment to your request:message.providers.mailjet.override will replace what we send to Mailjet’s Send API. You can see all the available options by visiting Mailjet API docs.