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SecurityTop 10 Best Encrypted Email Software of 2026
Top 10 encrypted email software ranking for privacy-focused users and teams, with comparison notes across mailbox.org, Tuta Mail, and Proton Mail.
How we ranked these tools
Core product claims cross-referenced against official documentation, changelogs, and independent technical reviews.
Analyzed video reviews and hundreds of written evaluations to capture real-world user experiences with each tool.
AI persona simulations modeled how different user types would experience each tool across common use cases and workflows.
Final rankings reviewed and approved by our editorial team with authority to override AI-generated scores based on domain expertise.
Score: Features 40% · Ease 30% · Value 30%
Gitnux may earn a commission through links on this page — this does not influence rankings. Editorial policy
Mailfence is the best fit if you want encrypted email tied to everyday mailbox use for teams already managing keys, whereas Hushmail works better for regulated groups that prioritize controlled encrypted delivery with simpler client setup.
Editor’s top 3 picks
Three quick recommendations before you dive into the full comparison below — each one leads on a different dimension.
mailbox.org
Encrypted message support uses mailbox-integrated OpenPGP so users encrypt and decrypt within their mail workflow.
Built for fits when teams already run key exchange and want encryption tied to normal mailbox use..
Tuta Mail
Editor pickOpenPGP message encryption integrated into the provider’s mail client workflow.
Built for fits when small teams need client-based encryption for known recipients..
Proton Mail
Editor pickSecure reply workflow that preserves end-to-end encryption during responses using stored recipient key context.
Built for fits when teams need OpenPGP-compatible encrypted mail with a practical web workflow..
Comparison Table
mailbox.org
SMBBusiness email with PGP and S/MIME support, calendars, contacts, and office collaboration tools.
Encrypted message support uses mailbox-integrated OpenPGP so users encrypt and decrypt within their mail workflow.
mailbox.org offers an encrypted message flow centered on OpenPGP so protected messages can be generated and read inside a single mailbox account. The system is designed for ongoing key use, including key management steps that reduce friction when exchanging encrypted mail with recurring contacts. Integration depth is primarily web and mail-client focused, with encryption behavior tied to the mailbox account rather than separate standalone encryption apps.
A concrete tradeoff is that PGP interop depends on recipients having compatible keys, so encrypted delivery breaks when external contacts do not manage keys. It fits best when a team has consistent internal users and can onboard recipients to key exchange before relying on encrypted threads.
- +OpenPGP encryption workflow is built into the mailbox experience
- +Key management stays linked to the same mail account
- +Web interface supports encrypted message handling without extra tools
- +Consistent encryption behavior for frequent internal recipients
- –External recipients need compatible keys for encrypted delivery
- –PGP setup and key handling take more effort than passphrase-only flows
- –Advanced policy automation depends on user workflow discipline
- –Less suited to fully automated encryption for unknown one-off recipients
Legal and compliance teams
Encrypt case-related email threads
Reduced exposure of sensitive content
Customer support organizations
Send encrypted documents to verified customers
Confidential support correspondence
Show 2 more scenarios
Small businesses
Standardize encrypted internal communication
Fewer misrouted plain-text messages
Keeps encryption practices consistent for staff and frequent partners within the same mailbox setup.
Security minded IT admins
Manage encryption without separate clients
Simplified operational handling
Centralizes daily encryption decisions through the web mail workflow and mailbox account.
Best for: Fits when teams already run key exchange and want encryption tied to normal mailbox use.
Tuta Mail
SMBEnd-to-end encrypted email with encrypted calendars, contacts, and open-source client applications.
OpenPGP message encryption integrated into the provider’s mail client workflow.
Tuta Mail delivers mailbox access through standard mail clients using IMAP and SMTP, while its OpenPGP workflow determines which messages are actually end-to-end encrypted. Encrypted attachments are handled as part of the encrypted message flow rather than as a separate portal layer. Setup can be straightforward for a single domain or a small number of users, because aliases and basic routing are managed in the Tuta account interface.
A practical tradeoff is that end-to-end protection depends on correct client configuration and recipient capability for OpenPGP. Teams that need strict policy enforcement across many external recipients can find governance limited, since there is no deep org-wide RBAC and no comprehensive API surface for automated key provisioning. Tuta Mail fits best when collaboration stays within known recipient groups or when occasional encrypted handshakes are acceptable.
- +OpenPGP-based end-to-end encryption tied to mail client workflows
- +Custom domain and alias management under the same mail account
- +IMAP and SMTP support for standard client compatibility
- +In-account security controls for login and abuse prevention
- –End-to-end coverage depends on correct OpenPGP setup and recipient readiness
- –Limited org-wide governance features for larger teams
- –API and automation support are not geared toward key provisioning pipelines
- –Cross-organization encrypted delivery can add manual coordination steps
Freelancers and consultants
Secure email for client document exchange
Confidential communication with fewer handoffs
Small privacy teams
Encrypt internal discussions among members
Cleaner separation from inbox metadata exposure
Show 2 more scenarios
Boutique agencies
Protect legal and HR correspondence
Lower risk during outside correspondence
OpenPGP encryption supports sensitive subject lines and message bodies when recipients are configured.
Community organizations
Secure donations-related communications
More privacy for supporter data
Encrypted messaging can reduce content exposure for donor inquiries and receipts.
Best for: Fits when small teams need client-based encryption for known recipients.
Proton Mail
SMBEncrypted email with zero-access encryption, end-to-end messaging, and privacy-focused account features.
Secure reply workflow that preserves end-to-end encryption during responses using stored recipient key context.
Proton Mail’s encryption flow is built around OpenPGP compatibility and its own key management experience, so external recipients can be reached through published public keys. Encrypted attachments are handled through Proton’s delivery workflow, which reduces exposure compared to sending files as plain email attachments. The mailbox experience supports compose and reply within the web client, with client behavior tied to how keys are available for each recipient.
A key tradeoff is that Proton Mail’s most reliable end-to-end behavior depends on correct key availability per recipient, which makes out-of-band key sharing a real operational task. It fits best when a team wants one encrypted inbox experience for both internal users and external partners that can receive OpenPGP-encrypted messages.
- +Webmail encrypted message workflow that works for day-to-day replies
- +OpenPGP-based end-to-end encryption for interoperable encrypted email exchange
- +Encrypted attachment delivery integrated into the message flow
- +Domain provisioning supports centralized account management for teams
- –Reliable end-to-end delivery depends on recipient key availability
- –Advanced governance and API automation depth is limited compared with enterprise gateways
Legal and compliance teams
Send encrypted case correspondence to external counsel
Reduced plaintext email exposure
Customer support teams
Exchange sensitive details with account holders
Safer handling of sensitive info
Show 2 more scenarios
Small IT teams
Provision encrypted mail for a domain
Lower onboarding friction
It supports domain-level account provisioning for consistent encrypted usage across users.
Partner organizations
Trade encrypted files and messages
Fewer data handling gaps
Encrypted attachments are delivered as part of the encrypted message workflow for recipients.
Best for: Fits when teams need OpenPGP-compatible encrypted mail with a practical web workflow.
Mailfence
SMBEncrypted email with OpenPGP support, digital signatures, calendars, contacts, and file storage.
The secure reply workflow keeps protected conversations controlled for recipients using the platform’s delivery flow.
Mailfence pairs an encrypted, web-accessible mailbox with OpenPGP-based sending and receiving workflows. It also supports S/MIME certificate use so teams can choose between key-driven and certificate-driven message protection.
Secure message delivery centers on encrypted mail that recipients can open via controlled access and verified replies. Admin features cover domain-level setup, user provisioning, and audit-oriented controls for governance workflows.
- +OpenPGP workflows are integrated into mail sending and reply handling
- +S/MIME support enables certificate-based encryption alongside key-based encryption
- +Domain and user provisioning supports centralized encrypted-mail onboarding
- +Encrypted attachments can be delivered in the same protected message flow
- –Secure delivery and reply workflows require recipients to use the correct access method
- –Advanced encryption setup can add friction compared with mainstream TLS-only mail
Best for: Fits when organizations need both OpenPGP and S/MIME paths with centralized encrypted-mail onboarding.
Hushmail
vertical specialistEncrypted email with secure web forms and compliance-oriented features for regulated organizations.
Password-protected message delivery that supports secure reply workflows without requiring the recipient to manage full key setup.
Hushmail delivers encrypted email with an easy web and client workflow for sending protected messages to specific recipients. The service uses a password-protected message delivery option for secure replies and handles encrypted attachments through its encrypted mail flow.
Key material and recipient targeting are the center of the experience, since secure delivery depends on the recipient setup and the chosen delivery mode. Admin and governance features focus on account-level control rather than broad enterprise automation for encryption policies.
- +Password-protected delivery supports secure replies without key exchange setup
- +Web-based compose and decrypt flow reduces friction versus key-first workflows
- +Encrypted attachment handling stays inside the protected message path
- +Recipient targeting is clear during send, which lowers accidental unprotected delivery risk
- –Recipient encryption can require extra recipient steps depending on chosen delivery mode
- –No documented, fine-grained encryption policy API for automation and routing
- –Admin controls focus on accounts and cannot express message-level controls
- –Limited extensibility for directory synchronization and key operations compared with enterprise suites
Best for: Fits when teams need encrypted email delivery with minimal client complexity and controlled recipient access.
Runbox
SMBPrivacy-oriented hosted email with encrypted storage, custom domains, and secure data handling.
Administrative user and domain configuration for consistent setup across multiple mailboxes in one environment.
Runbox targets teams that need an encrypted mailbox for daily email while keeping a familiar IMAP client workflow. It offers a mail client integration model around standard protocols, plus a web-based interface for reading and composing messages in the same account.
Runbox’s security controls center on access restrictions, account authentication, and server-side handling that aims to reduce exposure to mailbox contents. It also supports operational controls needed by organizations, including administrative configuration for users and domain-related settings.
- +IMAP workflow reduces friction versus portals that replace mail clients entirely
- +Webmail supports standard reading and sending flows for encrypted accounts
- +Account access controls fit day-to-day governance for small teams
- +Domain and user administration enables consistent setup across mailboxes
- –Encrypted-message features rely on provider workflow rather than native client encryption
- –No public, developer-focused API surface is documented for message-level automation
- –Advanced governance artifacts like audit exports are not a prominent focus area
- –Attachment handling for encrypted delivery can add workflow steps compared with plain mail
Best for: Fits when privacy-focused teams want an encrypted mailbox with an IMAP-friendly operating model.
PreVeil
enterpriseEnd-to-end encrypted email and file sharing for individuals, businesses, and government users.
Secure reply workflow that preserves the protected conversation path after initial password-protected delivery.
PreVeil focuses on encrypted email delivery built around a client-driven workflow and recipient access controls rather than a general-purpose mail client. The service centers on password-protected message delivery and secure reply handling for conversations that need controlled external access.
Administrators can configure organizational policies for how protected messages are issued and how recipients obtain access. PreVeil also provides API surfaces for integrating encryption steps into existing email operations and automation.
- +Password-protected message delivery supports controlled external access workflows
- +Secure reply workflow keeps recipients in the protected exchange path
- +API enables encryption and delivery steps to be automated inside existing systems
- +Admin policy configuration supports consistent protected-message behavior across teams
- –Recipient access depends on setup and consistent sharing of delivery credentials
- –Encrypted reply workflows can add friction versus plain email threads
Best for: Fits when teams need governed encrypted message delivery with controlled recipient access and automation via API.
SecureMyEmail
SMBEnd-to-end encrypted email for existing accounts with support for major mail providers.
OpenPGP encrypted message delivery that supports encrypted attachments through the normal mail sending path.
SecureMyEmail is an encrypted email service built around OpenPGP messaging so teams can send and receive protected content through standard email clients.
It supports recipient-focused encryption workflows, encrypted attachments, and key handling for secure sending over an email delivery path.
Administration centers on organizational account access and secure delivery behavior for users using mail clients.
- +OpenPGP-based encryption fits common mail-client workflows
- +Encrypted attachment delivery works within the email message flow
- +Recipient key handling supports repeat secure sending
- +Administration covers user access and secure delivery settings
- –Strong encryption outcomes depend on correct recipient key availability
- –Automation and API surface are limited compared with enterprise gateways
- –Secure reply behavior can require user training to avoid plaintext replies
- –Advanced governance controls like granular RBAC and detailed audit exports are not prominent
Best for: Fits when organizations need OpenPGP encrypted mail using existing clients and can manage recipient keys carefully.
Virtru
enterpriseEnterprise email encryption and data protection for Microsoft 365, Google Workspace, and other systems.
Secure reply workflow that extends encrypted access through the reply chain with policy-linked controls.
Virtru adds message-level encryption to outbound and inbound email workflows, with centrally managed policy controls for who can open content. It supports encrypted attachments and secure reply interactions that keep recipients within an access-controlled flow rather than relying on transport security alone.
Virtru’s admin layer focuses on configuration, user provisioning integration points, and governance for enterprise rollout. Its API surface targets workflow automation around encryption, access settings, and key handling decisions.
- +Policy-driven encryption controls that fit managed enterprise rollout
- +Secure reply workflow keeps conversation encrypted without manual handoffs
- +API supports automation of encryption settings and access rules
- +Encrypted attachment handling works inside common mail workflows
- –Encryption behavior depends on client integration and correct policy mapping
- –Harder governance tuning than simpler OpenPGP or S/MIME workflows
- –Key lifecycle decisions add operational overhead for distributed teams
- –Best results require consistent admin configuration across mail paths
Best for: Fits when enterprises need message-level controls, secure replies, and automation around encrypted email content.
StartMail
SMBPrivate email with PGP encryption, aliases, disposable addresses, and tracker blocking.
Encrypted message portal delivery uses recipient passwords when OpenPGP keys are not available for direct encryption.
StartMail provides an encrypted webmail experience built around OpenPGP and strong client-side protections for day-to-day email use. Message delivery uses a password-based encrypted message portal flow for receiving parties, which helps when recipients cannot use the same key setup.
The service supports standard mail client access via IMAP and SMTP while keeping encryption workflows separate from the transport layer. Admin functions are focused on account-level governance rather than deep team automation or programmable policy controls.
- +OpenPGP-centric workflow with built-in key and message handling
- +Password-protected encrypted message portal for non-key recipients
- +IMAP and SMTP access for integrating with existing mail clients
- +Simple account controls for privacy-focused individuals and small teams
- –Limited automation surface compared with API-first encrypted email tools
- –Team governance options are narrower than directory-backed enterprise stacks
Best for: Fits when small teams need encrypted email delivery with minimal recipient key setup overhead.
Conclusion
After evaluating 10 security, mailbox.org stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.
Use the comparison table and detailed reviews above to validate the fit against your own requirements before committing to a tool.
How to Choose the Right encrypted email software
Encrypted email software determines how messages are protected before they leave the sender, including how keys or delivery credentials are generated, stored, and checked during send and reply workflows. This guide covers mailbox.org, Tuta Mail, Proton Mail, Mailfence, Hushmail, Runbox, PreVeil, SecureMyEmail, Virtru, and StartMail.
The included tools differ in whether encryption is handled inside the normal mail workflow with OpenPGP, delivered through password-protected message portals, or maintained through secure reply workflows. Mailbox.org leads for an OpenPGP workflow that stays integrated with mailbox usage, while Proton Mail focuses on secure replies that preserve end-to-end protection during responses.
Encrypted email software that protects message content with key or credential-based workflows
Encrypted email software encrypts message content and attachments for transit and storage by using client workflows, provider workflows, or a secure reply workflow that keeps conversation-level protection intact. Some products center on OpenPGP message handling so recipients encrypt and decrypt inside their mail experience, such as mailbox.org and Tuta Mail.
Other tools reduce recipient friction by routing messages through password-protected delivery or an encrypted message portal when direct key exchange is not available, such as Hushmail and StartMail. Many secure reply implementations then rely on stored recipient key context or protected conversation paths, as shown by Proton Mail and Mailfence.
Encrypted email controls that determine real-world protection
Encrypted email software earns value only when encryption stays consistent across send and response workflows, not when encryption happens once at initial delivery. Tools in this set differ most on whether users encrypt and decrypt inside the mailbox experience or via a password-protected or secure-reply path.
These controls also determine how much governance can be applied before messages leave the sender. The strongest fit for privacy teams comes from predictable workflows like mailbox.org OpenPGP integration or Proton Mail secure reply workflow that preserves end-to-end protection during responses.
Secure reply workflow that preserves encryption state
Proton Mail keeps end-to-end protection intact during replies by using stored recipient key context, so the protected path continues after the first exchange. Mailfence also uses a secure reply workflow that keeps protected conversations controlled for recipients through the platform’s delivery flow.
OpenPGP encryption integrated into normal mailbox use
mailbox.org provides an OpenPGP encryption workflow integrated into the mailbox experience so users encrypt and decrypt within their normal mail workflow. Tuta Mail uses an OpenPGP-based end-to-end encryption workflow tied to mail client workflows for known recipients.
Password-protected encrypted delivery to reduce recipient key dependency
Hushmail supports password-protected message delivery that enables secure replies without requiring recipients to manage full key setup. StartMail adds an encrypted message portal that uses recipient passwords when OpenPGP keys are not available for direct encryption.
S/MIME and OpenPGP paths with centralized onboarding choices
Mailfence supports both OpenPGP workflows and S/MIME certificate-based encryption so organizations can choose certificate-driven delivery alongside key-based delivery. Hushmail and StartMail avoid certificate-first onboarding by leaning on password-protected delivery modes.
API and automation depth for governed encrypted message delivery
PreVeil positions password-protected message delivery with a secure reply workflow plus automation via API, which supports governed encrypted delivery for teams. mailbox.org focuses on integrating encryption into the mailbox experience, while maintaining key management linked to the same mail account rather than advertising enterprise gateway automation.
Choose based on workflow control, recipient readiness, and automation needs
Encrypted email software decisions should start with how recipients will access protected content, because correct access method selection is what determines whether encrypted delivery actually works. Several tools depend on recipient key availability for OpenPGP paths, while others route through password-protected delivery or a portal to reduce recipient setup friction.
After access mode, the next fork is workflow continuity during replies and scaling requirements for governance. Proton Mail and Mailfence focus on secure reply workflows that preserve protection during responses, while mailbox.org and Tuta Mail focus on OpenPGP workflows inside normal mail usage, and PreVeil adds an API automation surface for governed delivery.
Select encryption continuity for reply-heavy workflows
If protected conversations must remain encrypted during responses without relying on recipients to re-initiate key setup, Proton Mail’s secure reply workflow and Mailfence’s secure reply workflow are the most direct fits. If replies are less critical than day-to-day encryption inside the compose and read experience, mailbox.org and Tuta Mail center encryption inside the mailbox workflow.
Match recipient readiness to the delivery access method
Choose a password-protected delivery model when recipient key management is inconsistent, because Hushmail and StartMail can route encrypted delivery through recipient passwords. Choose OpenPGP integration when recipient key readiness is known and can be coordinated, because mailbox.org and Tuta Mail depend on correct OpenPGP setup for end-to-end delivery.
Decide whether certificate-based encryption matters for onboarding
If certificate-based workflows are required alongside key-based workflows, Mailfence offers both OpenPGP and S/MIME support for centralized encrypted-mail onboarding. If the team wants to avoid certificate complexity and center on OpenPGP or password-protected delivery, Tuta Mail and Hushmail keep the workflow narrower around their chosen encryption path.
Pick the governance depth needed for automation and policy rollout
If teams need encrypted message delivery that supports automation and governed workflows, PreVeil emphasizes API automation around controlled access and a secure reply workflow. If the primary goal is consistent setup across mailboxes in a shared environment with fewer developer-centric workflow hooks, Runbox provides administrative user and domain configuration while relying on provider workflow rather than a documented message-level API.
Evaluate how encryption impacts attachments and client expectations
If encrypted attachments must stay within the normal message flow, SecureMyEmail explicitly supports OpenPGP encrypted attachments through the standard mail sending path. If attachments and reply workflows must stay governed through policy-linked controls, Virtru’s policy-linked secure reply workflow is designed for message-level controls beyond basic OpenPGP handling.
Teams and users who should prefer each encrypted email approach
Encrypted email software fit depends on whether the organization can manage recipient encryption readiness and whether the protected experience must extend through reply chains. Privacy teams usually choose between OpenPGP-in-mailbox workflows, password-protected message portals, or secure reply workflow continuity.
Mailbox and onboarding model also shape usability for day-to-day sending. Runbox favors an IMAP-friendly operating model, while Proton Mail favors a practical web workflow for secure reply usage.
Teams that already coordinate OpenPGP keys and want encryption inside normal mail use
mailbox.org ties OpenPGP encryption workflow to the mailbox experience so encryption stays within standard send and decrypt actions. Tuta Mail provides a similar OpenPGP-based end-to-end encryption experience that remains tied to mail client workflows for known recipients.
Small teams that need encrypted delivery with minimal recipient key setup
Hushmail supports password-protected message delivery so recipients can reply without managing full key setup. StartMail provides an encrypted message portal that uses recipient passwords when OpenPGP keys are unavailable.
Organizations that require protected reply chains for day-to-day operations
Proton Mail’s secure reply workflow preserves end-to-end encryption during responses using stored recipient key context. Mailfence uses secure reply workflow mechanics that keep protected conversations controlled for recipients through the platform’s delivery flow.
Enterprises that need policy-linked controls around encrypted content
Virtru offers policy-driven encryption controls that fit managed enterprise rollout and extends protected access through the reply chain. PreVeil focuses on governed encrypted message delivery with password-protected access workflows plus automation via API.
Privacy-focused teams that prefer IMAP-compatible workflows over portal-only reading
Runbox offers IMAP workflow support for standard reading and sending on encrypted accounts. That approach can reduce friction compared with tools that primarily rely on portal-based delivery patterns.
Encrypted email mistakes that break real confidentiality
Common failures come from workflow mismatch rather than missing encryption features. Encrypted email tools differ in how recipient access is determined, and using the wrong access method breaks secure reply expectations or encrypted delivery success.
Teams also make governance mistakes by treating encryption as a one-time action instead of a reply-chain and onboarding process. Secure reply workflow design, recipient key availability, and automation surface determine whether encryption remains correct after initial send.
Assuming OpenPGP encrypted delivery works for external recipients without key readiness
mailbox.org and Tuta Mail depend on correct OpenPGP setup and recipient readiness for encrypted delivery to function reliably. For external recipients who cannot be coordinated, choose a password-protected delivery model like Hushmail or StartMail.
Ignoring how secure reply workflows preserve or fail to preserve encryption during responses
Proton Mail and Mailfence are designed to keep the protected conversation path during replies through secure reply workflow mechanics. Tools like Hushmail and StartMail reduce recipient key demands, but the secure reply experience depends on the chosen delivery mode and recipient access steps.
Treating encryption onboarding as a one-time setup instead of a repeatable governed workflow
PreVeil and Virtru support governed encrypted message delivery patterns, but secure outcomes still depend on consistent sharing of delivery credentials or correct policy mapping. Runbox can centralize administrative user and domain configuration, but message-level automation is limited compared with tools built around documented automation surfaces.
Overlooking attachments and reply chain implications when encrypted attachments are required
SecureMyEmail explicitly supports OpenPGP encrypted attachment delivery through the normal mail sending path. Virtru’s policy-linked controls and secure reply workflow are better aligned when encrypted attachments must stay governed across the reply chain.
How We Selected and Ranked These Tools
We evaluated encrypted email software across encrypted send and reply workflow continuity, recipient access mode fit, and the practical automation and integration surface visible from each product’s capabilities. Features carried 40% weight, ease and operational friction carried 30% weight, and value for privacy teams carried 30% weight.
mailbox.org separated itself by integrating OpenPGP encryption directly into mailbox usage while keeping key management linked to the same mail account. That integration approach scored highest for workflow continuity and reduced the chance that users would manage encryption as an external bolt-on. The ranking also reflected the contrast between mailbox-integrated OpenPGP like mailbox.org and client-facing encryption workflows like Tuta Mail versus secure reply workflow continuity like Proton Mail.
Frequently Asked Questions About encrypted email software
How do mailbox.org and Tuta Mail handle OpenPGP encryption in day-to-day sending and receiving?
When a team needs encrypted message replies that stay protected, how do Proton Mail and Mailfence compare?
Which tool supports the most direct API-based automation for encryption steps and governed delivery?
What breaks if recipients cannot access the same keys when using password-based encrypted message delivery?
How do Virtru and PreVeil differ in how they enforce who can open content during the message lifecycle?
How do encrypted attachments work in SecureMyEmail and Runbox when users rely on standard mail clients?
Which tool is better suited for organizations that need S/MIME support alongside OpenPGP?
When admin governance requires domain provisioning and consistent team setup, how do Proton Mail and Runbox handle it?
What security and key-handling requirement causes most setup failures across OpenPGP-based products like Proton Mail and Tuta Mail?
Tools reviewed
Primary sources checked during evaluation.
Referenced in the comparison table and product reviews above.
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