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Switch from Mailchimp to Mailjet: A Step-by-Step Migration Guide

Thinking about leaving Mailchimp?
Learn how to easily migrate your contacts, email templates, and essential data to Mailjet with this step-by-step guide.

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Choosing an email platform is about more than comparing features. As your business grows, you need a solution that can support your teams, scale with your sending needs, and meet your requirements for performance, collaboration, and compliance.

In this guide, you’ll learn why companies migrate from Mailchimp to Sinch Mailjet, and how to migrate your contacts, email templates, and essential data from Mailchimp to Mailjet in just a few simple steps. All you need is:

  • Your Mailchimp account
  • A new Sinch Mailjet account. Getting started is free and only takes a few minutes

Why businesses switch from Mailchimp to Mailjet

  • Unlimited contacts to support your growth
  • Predictable pricing based on email volume, not the size of your contact database
  • Collaborative features designed for marketing teams and distributed organizations
  • Advanced automation and intelligent segmentation to create more relevant customer journeys
  • AI-powered capabilities that help you save time and optimize your campaigns
  • Recognized deliverability expertise and reliable infrastructure you can count on
  • A trusted platform built with security, privacy, and GDPR compliance in mind

Step 1: Migrate your Contacts from Mailchimp to Sinch Mailjet

1. Log in to your Mailchimp account.

2. From the menu, click Audience, then select View Contacts.

Orange arrow pointing to the View Contacts button on the Audience page

3. Click Export Audience. Repeat this process for every audience you need to export.

Mailchimp Audience dashboard with orange arrows pointing to the audience selection dropdown and the Export Audience button

4. Download the CSV file and unzip it.

Folder containing two CSV files: subscribed_members and unsubscribed_members

5. It’s now time to import your contacts into Sinch Mailjet. Log in to your account to get started.

Important: If you have multiple audiences (contact lists) in Mailchimp, you should import each audience into a separate Mailjet contact list.

6. From the menu, go to Contacts > Contact Lists, then click Create a new list. Select Paste contacts manually or upload a file, then upload the CSV file containing your subscriber data.

Interface for creating a new list with arrows highlighting the name field, import option, and file upload area

7. If necessary, map the contact fields. All your contact properties (such as name, company, birthday, and more) will be imported. You can use these properties to segment your contact lists and personalize your emails. Once you’re done, click Save and continue.

Interface for mapping contact list properties like Email, Last Name, and First Name to destination fields

8. Next, import your unsubscribed contacts. This step is important to ensure you don’t send emails to contacts who have previously unsubscribed. Click Manage contacts.

Orange arrow pointing to the Edit contacts link in the MyBusiness Inc. Newsletter dashboard

9. Select Unsubscribe contacts as the update type, then drag and drop the CSV file containing your unsubscribed contacts. If necessary, map the fields before proceeding.

Interface showing the Unsubscribe contacts option selected and an arrow pointing to the file upload area

Step 2: Migrating your email templates

We won’t sugarcoat it: you can’t directly export your Mailchimp templates and continue editing them in Sinch Mailjet’s Email Editor. However, that doesn’t mean you have to start from scratch.

You have two options for working with your email templates in Sinch Mailjet:

  • Option 1: Recreate your templates using our intuitive drag-and-drop Email Editor. It’s designed to help you build responsive email campaigns quickly and easily, without any coding skills.
  • Option 2: Export your Mailchimp template as HTML and edit the HTML version in Sinch Mailjet.

If you choose the second option, follow these steps:

1. In your Mailchimp account, go to Templates, then click Export as HTML for each template you want to download.

Mailchimp Templates page showing the Export as HTML option in a template's dropdown menu

2. In your Sinch Mailjet account, go to Campaigns and select Create a new template. Then choose Code it in HTML and upload your HTML file.

Interface for creating an email template in HTML with options to import a file, code from scratch, or upload a zip

Step 3: Export your reporting data

It isn’t possible to transfer your reporting data from Mailchimp to Sinch Mailjet. However, we understand how important it is to keep track of your email performance and historical results.

In your Mailchimp account, go to Reports, then select Download All Reports.

Arrows point to the Current audience dropdown and the Download All Reports button on the Reports page

Your migration to Sinch Mailjet is complete!

Your contacts and templates are now ready to use in Sinch Mailjet.

Before sending your first campaigns, make sure to validate your domains and sender addresses, and configure your SPF, DKIM, and DMARC records to ensure optimal deliverability.

Ready to get the most out of Sinch Mailjet?

Discover how Sinch Mailjet can help you grow your audience with unlimited contacts, powerful collaboration features, advanced automation capabilities, and deliverability expertise.

👉 Create your free Sinch Mailjet account
👉 See how Sinch Mailjet compares to Mailchimp

Photo of Thomas Hajdukowicz

Thomas Hajdukowicz Thomas Hajdukowicz is a Regional Marketing Manager for France at Sinch Mailjet. He is a history nerd and loves to cook. He writes about emailing tips and best practices that help our French audience take their emails to the next level. You can also find him hosting the French version of our webinar Email Academy!

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