Best Email Encryption Services for 2026: 12 Providers Ranked by Value

Proton Mail is the most complete encrypted mail service here, with end-to-end encryption between Proton users, a free tier that covers everyday use, and paid plans adding storage, custom domains and addresses. It sits inside a wider Proton suite covering VPN, calendar, drive and password management. Mail Plus costs $4.99 a month billed monthly, or $3.99 a month billed annually, and includes 15 GB of storage, 10 addresses and 1 custom domain.

The trade-offs are the ones encryption always brings. Subject lines are not end-to-end encrypted, search is limited because the server cannot read message contents, and Bridge for desktop mail apps needs a paid plan. Business mail costs extra: Mail Essentials is $6.99 per user a month billed annually. Pick Proton Mail when you want a private inbox with a clear upgrade path when storage or domains matter.

Tuta, formerly Tutanota, encrypts mail, calendar and contacts end to end, including subject lines, with a free tier and low-priced paid plans. Its open-source clients let reviewers inspect the code, and its focus stays narrow: private communication, not a broad suite. The paid plan costs €3.60 a month billed monthly, or €3 a month billed annually, and includes 20 GB of storage, 15 extra addresses and 3 custom domains.

The ecosystem is smaller than Proton's, with fewer integrations and no VPN or drive bundle, and there is no IMAP support, so desktop mail apps are out — you use Tuta's own apps. The review base is thin at 18 G2 reviews. Pick Tuta when you want the most complete encryption at the lowest price and you are happy to live inside one provider's apps.

SecureMyEmail is the only tool here that encrypts the mailbox you already have instead of giving you a new one. It layers true end-to-end encryption over Gmail, Yahoo and Microsoft consumer accounts, so there is no migration, no new address to tell people about, and no change to your workflow. The paid plan costs $3.99 a month billed monthly, or $29.99 a year, and the free plan covers one consumer account.

The limits are scope, not price. The free plan covers a single consumer account, other addresses need the paid plan, and there is no mailbox of its own with a custom domain. Independent feedback is also very thin at 4 G2 reviews. Pick SecureMyEmail when your address is the asset — a Gmail or Outlook address clients already know — and you want encryption without moving house.

StartMail offers private email with PGP support, letting users exchange encrypted mail with any PGP-capable correspondent, not only fellow StartMail users. It blocks tracking pixels, keeps servers in the Netherlands, and avoids advertising-based revenue. That standards-based approach appeals to users who already understand PGP or want interoperability. Personal costs $6.99 a month billed monthly, or $4.99 a month billed annually, and includes 20 GB of storage, unlimited aliases and 1 custom domain.

There is no free tier beyond a 7-day trial, no mobile apps, and no built-in calendar — the feature set is narrower than Proton's suite. The first-year price is also discounted: Personal renews at $59.88 a year after a $23.96 first year. Pick StartMail when PGP compatibility matters more than a free plan or a bundled suite.

Mailfence combines encrypted email with calendar, contacts and document tools, plus OpenPGP support for standards-based encryption. Its free tier covers basic mail use, and paid plans add storage and group features. The service is based in Belgium, which some users prefer for data protection reasons. Base costs €2.50 a month and is the cheapest entry price in this list, while Entry at €3.50 a month adds custom domains and IMAP access.

The interface is functional rather than polished, and heavy users will need a paid plan for storage — the free plan is only 500 MB and blocks IMAP and SMTP. The public review base is also thin at 5 G2 reviews. Pick Mailfence when you want encrypted mail plus office tools in one account, with OpenPGP compatibility for correspondents outside the service.

Hushmail is one of the longest-running encrypted webmail services, offering passphrase-based encryption in a simple web interface. Businesses use its encrypted web forms to receive sensitive messages from customers without those customers needing an account. That form feature remains a distinctive, practical use case. Personal costs $59.99 a year and includes 15 GB of storage, unlimited aliases and 2 secure web forms, with a 60-day money-back guarantee instead of a free trial.

There is no free tier, no Android app, and the interface feels dated beside Proton and Tuta. Healthcare plans, which add a business associate agreement and e-signatures, start at $11.99 a month. Pick Hushmail when you want straightforward encrypted webmail, or encrypted intake forms for a practice, without learning PGP or managing keys yourself.

PreVeil provides end-to-end encrypted email and file sharing for businesses, with key management handled by the service so staff never manage keys directly. It targets compliance-sensitive industries, including defense and finance supply chains, and it works alongside existing email rather than replacing it entirely. Individual costs $25 a month with annual payments, Business costs $30 per user a month, and a free Basic plan covers 5 GB for individuals.

Pricing is business-grade and quote-based at the top end, and personal users will find better value elsewhere. Recipients outside PreVeil need the app or browser access to read mail, and the review base is thin at 10 G2 reviews, with some reporting sync problems. Pick PreVeil when compliance proof matters more than price and staff must never touch a key.

Virtru adds encryption, access controls and revocation to Gmail and Outlook, so teams keep their existing mail provider and add protection on top. Senders can set expiry, revoke access after sending, and track opens, which matters for sensitive business documents. Audit trails support compliance reporting. Starter costs $119 a month for 5 users, billed annually, and includes a signed business associate agreement for HIPAA use.

The bundle pricing is the catch: $119 a month covers only 5 users, so a 10-person team pays for two bundles, and Business and Compliance tiers cost $219 and $499 a month for 5 users. Some recipients still struggle to open encrypted messages. Pick Virtru when your team is standardized on Google Workspace or Microsoft 365 and needs control without migrating mailboxes.

Paubox is built for healthcare email, with HIPAA-focused encryption that works without forcing recipients into a portal to read messages. That recipient experience matters in healthcare, where patients and partners should not need new accounts to read a secure message. An email API lets developers add encryption to existing workflows. Standard costs $32 a month for 5 users, with a 14-day free trial, and Plus and Premium add inbound security, archiving and DLP.

The healthcare focus narrows its fit for general business use, and pricing is business-grade: the per-sender price rises steeply as the team grows. Paubox's own pricing page also did not show prices when we checked, so the $32 figure comes from Paubox's vendor-supplied G2 listing. Pick Paubox when you send protected health information by email and want the simplest possible recipient experience.

Mimecast is a long-established email security platform that combines gateway protection, targeted threat defense, archiving and business continuity. Its strength is breadth: phishing and impersonation protection on the way in, policy-based encryption on the way out, and a cloud archive with long retention and e-discovery for compliance teams. Email continuity keeps mail flowing when Microsoft 365 goes down, which matters to regulated teams that cannot lose a day of mail.

There is no published price — every deal is a sales quote, so budgeting needs a call with the vendor or a partner. Setup and policy tuning also take longer than the consumer tools here, and reviewers report occasional false positives. Pick Mimecast when a regulated team needs security, archive and compliance in one platform and can run a proper procurement process.

Proofpoint Core Email Protection is the enterprise gateway in this list, with AI-driven threat detection, URL and attachment sandboxing, and policy-based encryption and DLP for outbound mail. It is the highest-rated enterprise gateway here at 4.6 out of 5 from 584 G2 reviews, and its detailed reporting suits security teams that must show what was blocked and why. Encryption runs by policy, so sensitive mail is protected without staff remembering to encrypt.

There is no published price — enterprise products are sold by quote only, and the small-business Essentials line is migrating to 365 Total Protection, so check the current platform before buying. Configuration is complex, and reviewers report false positives that need manual release. Pick Proofpoint when threat detection matters as much as encryption and the budget allows an enterprise purchase.

Barracuda Email Protection is an email security solution that uses machine learning to defend against spam, phishing, malware and business email compromise. It combines gateway defenses with API-based inbox defense, and a cloud-to-cloud backup add-on protects Microsoft 365 data. Setup is fast — reviewers praise the easy Microsoft 365 integration — and a free trial is available before you commit to a quote.

There is no published price: Barracuda sells by quote, and reported per-user prices vary widely, so the only way to budget is to ask. Reviewers also report false positives that need manual release, and some find the interface harder to navigate since the AI features arrived. Pick Barracuda when a Microsoft 365 shop wants gateway security that is easy to set up and can add backup later.