Use your Mailjet Account to Send Customer.io

Customer.io supports using your own Mailjet account to send email with zero loss in functionality. To do this there are two places you’ll need to change settings:

1. On Mailjet

First, you need to point Mailjet’s webhooks at Customer.io and get your SMTP information.

Point Mailjet’s webhooks at Customer.io

Add the following webhook URL on the Mailjet event triggers page for every event execpt for open and click:

  • US: https://track.customer.io/mailjet/events
  • EU: https://track-eu.customer.io/mailjet/events

 Use the correct URL for your region

If your account is based in the European Union (EU), make sure you use endpoints beginning with track-eu. We redirect traffic from US endpoints to EU-based accounts, however the traffic still passes through US servers and data may be logged in the US.

Example webhook config
Example webhook config

 WARNING!

The Clicks and Opens webhooks should not be sent back to Customer.io as we’re already tracking this information on our side and each event will be recorded twice (via Customer.io and via Mailjet).

If you want to track opens and clicks via Mailjet only, you can change the sending behavior on an email by email basis.

Get your SMTP information

On the main SMTP details screen, you’ll find your SMTP credentials. You’ll need them to configure Customer.io.

Mailjet config settings
Mailjet config settings

2. In Customer.io

Configure custom SMTP settings

First, head to Workspace Settings -> Email -> Custom SMTP Settings and click the Add Custom SMTP Server button:

Custom SMTP settings
Custom SMTP settings

Then add in your Mailjet SMTP credentials:

Mailjet SMTP
Mailjet SMTP
Field Value
Address in-v3.mailjet.com
Port 587
Authentication Login
User name [Your SMTP User Name]
Password [Your SMTP Password]

When you save your settings, we’ll start sending emails through your Mailjet account.

Success!

Your account is now set up to send email through Mailjet. If you have any questions or feedback about setting this up, just get in touch and we’ll be happy to help!