Mailfence vs Proton Mail: Privacy Comparison
Here we put Mailfence head-to-head with Proton Mail across the six privacy factors that matter most: their data collection practices, encryption implementation, third-party data sharing, user privacy controls, transparency, and historical track record. While both products address similar requirements, the philosophies they bring to protecting users diverge sharply. Our assessment finds that Proton Mail provides a noticeably better overall privacy experience, although neither service is without trade-offs that deserve a careful, detailed look.
How They Stack Up
Here is the result of weighing both services across the dimensions that decide real-world privacy. Across the six privacy dimensions we score, Proton Mail finishes ahead of Mailfence, 53/60 to 36/60. That total reflects a privacy face-off in which one service is consistently the more privacy-respecting choice, even though both cover the same functional ground.
The largest single-dimension gap is in Data Collection, where Proton Mail leads by 3 points -- Mailfence 6/10 to Proton Mail 9/10. Third-Party Sharing is where they come closest, a mere 2-point gap (8 vs 10 out of 10). Each dimension is unpacked in detail in the analysis below.
What Gets Collected
The starting point for judging privacy is always how data is collected. The amount of user data a service captures, keeps, and works with is the single biggest factor behind its privacy exposure. Proton Mail shows more discipline on this front, collecting nothing beyond the bare minimum needed for the service to run. The competing option reaches for a much wider set of data, including behavioral patterns, device identifiers, and usage analytics that stretch beyond the essentials. In this category we rated Mailfence 6/10 and Proton Mail 9/10. The gap comes down to more than raw volume -- it is about the intent behind each piece of data and whether collecting it was ever justified.
How Strong Is the Encryption
Whether data is moving or resting, encryption is what keeps it safe, and the quality of that work swings widely across services. Proton Mail brings more capable encryption to the table, pairing more resilient protocols for data in transit with better protection for data at rest. Where the two differ is in coverage (exactly which data is encrypted), in strength (the algorithms and key lengths chosen), and in whether end-to-end encryption is used at all (which stops even the service operator from seeing user content). On encryption, Mailfence scored 7/10 and Proton Mail scored 10/10.
Who Else Gets Your Data
One of the most important privacy questions is how freely a service passes data along to others. The list of recipients can run from advertising networks and analytics providers to business partners and government requests. Proton Mail draws firmer limits around third-party access to user data. Such practices matter for security and not only privacy, because each new entity with access is another door through which a breach could occur. Scores: Mailfence 8/10, Proton Mail 10/10.
What You Can Manage Yourself
The availability and effectiveness of user-facing privacy controls determine how much agency individuals have over their own data. This includes settings for data collection opt-out, download and deletion capabilities, granular permission controls, and the ease with which users can exercise their rights under applicable privacy regulations. Proton Mail provides more comprehensive and accessible privacy controls. Scores: Mailfence 4/10, Proton Mail 7/10.
Transparency
Transparency encompasses how clearly each service communicates its data practices. This includes the readability of privacy policies, the publication of transparency reports, responsiveness to privacy inquiries, and proactive communication about policy changes. Proton Mail demonstrates stronger transparency overall. Clear, accessible privacy communication is essential for informed consent and trust. Scores: Mailfence 5/10, Proton Mail 8/10.
What Their History Reveals
The record of privacy incidents, regulatory run-ins, and how a service answers vulnerabilities offers context you cannot ignore. Proton Mail holds the stronger track record here, with a smaller count of incidents and a more responsible response to the problems that did surface. More often than not, what a service did in the past is the best guide to its future privacy conduct. Scores: Mailfence 6/10, Proton Mail 9/10.
The Final Verdict
Our comprehensive analysis gives Mailfence a total score of 36/60 and Proton Mail a total score of 53/60. The overall winner for privacy is Proton Mail. While both services serve similar functional needs, the winner demonstrates a more privacy-respecting approach across the dimensions that matter most. That said, no service is perfect, and users should always configure privacy settings actively regardless of which option they choose. We recommend supplementing your choice with additional privacy tools, a VPN, DNS-level ad blocker, and privacy-focused browser, to build a comprehensive privacy posture. If your threat model requires the strongest possible privacy, consider whether an even more privacy-focused alternative exists in this category beyond the two compared here.