Mailjet Destination

Segment makes it easy to send your data to Mailjet (and lots of other destinations). Once you've tracked your data through our open source libraries we'll translate and route your data to Mailjet in the format they understand. Learn more about how to use Mailjet with Segment.

This destination is maintained by Mailjet. For any issues with the destination, you may contact their team.

Getting Started

Navigate to the “App Connections” page(Account -> App Connections) and click on the “Segment” destination block to find your Segment Authentication key. If you do not see the App Connections page for any reason, please contact us at Select a Contact list from the drop down menu that you wish to have Segment send contact property data to.

Be sure and note the contact list id inside the field below the chosen list because you will need to paste it into your Segment account so Segment knows where to send the data to.

Once you have this, navigate over to Segment. Within your existing or new workspace, find Mailjet in the Destinations tab. Click open the tile and paste your Authentication key within the Settings slide out.

Confirm that the contact list id is the same, click save, and then Enable Destination.

Sending Data from Mailjet

Mailjet supports sending email events to data warehouses and other tools on the Segment platform. These events will be sent as track calls to the other destinations you’ve turned on.

You will have the option to enable this feature when you’re on the App Connections page. Simply grab Segment’s write-key and paste it in the box and save. You will see the Sources come in as track events in your debugger.


You can send computed traits and audiences generated through Segment Personas to this destination as a user property. To learn more about Personas, reach out for a demo.

For user-property destinations, an identify call will be sent to the destination for each user being added and removed. The property name will be the snake_cased version of the audience name you provide with a true/false value. For example, when a user first completes an order in the last 30 days, we will send an identify call with the property order_completed_last_30days: true, and when this user no longer satisfies we will set that value to false.

When the audience is first created an identify call is sent for every user in the audience. Subsequent syncs will only send updates for those users which were added or removed since the last sync.


Segment lets you change these destination settings via your Segment dashboard without having to touch any code.

Authentication key

Your Mailjet Authentication key

List ID

Please provide the default list id for which contacts will be associated with

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