How to send email with Mailjet

Knock integrates with Mailjet to send email notifications to your users.

In this guide you'll learn how to get started sending transactional email notifications with Mailjet through Knock. We also cover provider configuration and additional data you can pass through to Mailjet.


  • Attachments support
  • Delivery tracking
  • Link and open tracking
  • Per environment configuration
  • Sandbox mode

Getting started

You can create a new Mailjet channel in the dashboard under the Integrations > Channels section. From there, you'll need to configure the channel for each environment you have.

Provider configuration

API keystring*The public API key for your Mailjet account
API secret keystring*The secret API key for your Mailjet account
Open trackingbooleanShould the provider track opens on their service?
Link trackingbooleanShould the provider track link clicks on their service?
From email addressstring | liquid*The sender email address (can use Liquid tags)
From namestring | liquidThe sender name (can use Liquid tags)

Environment default settings

The following fields are optional and if set, will be applied to all email messages sent via this channel within the environment:

Reply-to addressstring | liquidThe reply-to email address (can use Liquid tags)
CC addressstring | liquidThe cc email address (can use Liquid tags)
BCC addressstring | liquidThe bcc email address (can use Liquid tags)
JSON overridesstring | liquidProvider API's paramater overrides
JSON overrides behavior. For this provider, we will merge the JSON overrides with the first object under the "Messages" attribute.

Additional data sent

Knock sends the following attributes along with your emails:

  • CustomID: the message ID attached to this email

You can learn about the role of this Mailjet attribute in the Mailjet API documentation.

Recipient data requirements

In order to send an email notification you'll need a valid email property set on your recipient.