GDPR-Compliant Email Marketing: Why Mailjet Beats Mailchimp

Email marketing remains one of the most effective channels for reaching customers, but for European businesses it also represents one of the most significant GDPR risk areas. Every subscriber list, every behavioural tracking pixel, and every A/B test involves the processing of personal data. When that processing happens on servers controlled by a US company subject to the CLOUD Act, the legal exposure is real and growing. This is why the question of Mailchimp versus Mailjet is not merely a feature comparison — it is a compliance decision.

The Mailchimp problem

Mailchimp, now owned by Intuit, processes all subscriber data through US-based infrastructure. Despite offering a data processing addendum and Standard Contractual Clauses, the fundamental issue remains: Mailchimp is a US company subject to US jurisdiction. Under the CLOUD Act, US authorities can request access to data held by American companies regardless of where the data is physically stored. This creates an inherent tension with GDPR Article 48, which restricts the transfer of personal data based on foreign court orders.

For European businesses, this is not a theoretical concern. Data protection authorities in France, Austria, and Italy have already issued decisions questioning the adequacy of US data transfers following the Schrems II ruling. If your marketing team is sending newsletters through Mailchimp, your subscriber email addresses, open rates, click behaviour, and segmentation data are all potentially accessible to a foreign government without your knowledge or consent. That is a difficult position to defend in front of a regulator.

The situation is compounded by Mailchimp’s data practices. The platform collects extensive behavioural data for its own analytics and machine learning models. While this powers useful features like send-time optimisation, it also means your subscribers’ data is being processed for purposes beyond your direct control — a potential violation of GDPR’s purpose limitation principle.

Why Mailjet is the stronger choice

Mailjet was founded in Paris and is now part of the Sinch group, with its core operations and data centres firmly rooted in Europe. When you send a campaign through Mailjet, your subscriber data stays within EU jurisdiction. There is no CLOUD Act exposure, no ambiguity about which legal framework governs your data, and no need for complex transfer impact assessments.

From a feature perspective, Mailjet holds its own. The platform offers a drag-and-drop email builder, advanced segmentation, A/B testing, transactional email via API, and real-time analytics. For development teams, Mailjet’s API is well-documented and widely regarded as one of the cleanest in the email marketing space. Companies that need both marketing and transactional email can handle everything through a single EU-hosted platform, avoiding the need for a separate provider like SendGrid — another US-based service with the same jurisdictional concerns.

Mailjet’s pricing is also competitive. The free tier includes up to 6,000 emails per month, which is generous enough for small businesses and startups. Paid plans scale predictably, and because Mailjet is hosted in France, you benefit from French data protection law, which is among the strictest in Europe thanks to the CNIL’s active enforcement.

Making the switch

Migrating from Mailchimp to Mailjet is straightforward. Mailjet supports CSV import for subscriber lists, and most email templates can be rebuilt quickly using the visual editor. If you rely on automation workflows, plan for a brief transition period to recreate sequences, but the core functionality maps closely.

For a detailed feature-by-feature breakdown, see our Mailchimp vs Mailjet comparison. The comparison covers pricing tiers, deliverability, API capabilities, and compliance posture so you can make an informed decision.

Beyond email marketing

Switching your email marketing platform is often the first step in a broader move toward GDPR-compliant email marketing tools. But it should not be the last. If your business still relies on US-hosted services for other functions, consider reviewing your entire stack. European alternatives exist for nearly every category — from cloud hosting to file storage to analytics.

Browse our full directory of email marketing tools to see how the European ecosystem compares, or explore GDPR-compliant software across all categories. The European SaaS landscape has matured to the point where compliance no longer requires compromise on features or usability. With Mailjet, your email marketing is legally sound, technically capable, and firmly within European jurisdiction.