No. CluePoints is clinical-trial software for research organizations, not a free email provider or a service for creating a personal mailbox. If you want free email with encryption, Proton Mail and Tuta Mail are separate services with free plans; their current features and encryption details are best checked on their official pages.
What is CluePoints?
CluePoints provides risk-based quality management (RBQM) and data-quality oversight software for clinical research. Its company overview describes AI-powered solutions using statistics and machine learning, while its current homepage positions the platform for sponsors and contract research organizations (CROs).
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The platform’s listed functions include centralized risk detection, site-level action, intelligent medical coding, safety review and query detection. These support clinical-trial oversight; they are not email, inbox or email-encryption features. CluePoints’ privacy policy, updated June 26, 2025, discusses account and clinical-trial data handled in its business, not a public email-hosting product. Its contact page directs prospective customers to experts and existing users to platform help-desk support.
Which free secure email services are alternatives?
Proton Mail and Tuta Mail are actual email services, separate from CluePoints. Their official pages describe free options and their own encryption practices. Those product descriptions help explain how the services say they work; they are not independent comparative security audits.
#1 Best Overall
- POWERFUL SECURITY KEY: The Security Key C NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key C NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key C NFC via USB-C and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
Proton Mail
Proton says it will always offer a free encrypted email plan with basic features. It describes end-to-end encryption as encrypting a message on the sender’s device so the intended recipient can decrypt it with the corresponding key. See Proton Mail’s pricing page for the current free-plan features and limits, which can change.
Tuta Mail
Tuta’s pricing page describes free and paid plans and says data in Tuta is end-to-end encrypted. On its secure email page, Tuta says messages between Tuta users are automatically end-to-end encrypted. Check the official pricing page for current plan details.
Rank #2
- POWERFUL SECURITY KEY: The YubiKey 5C NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5C NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5C NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
How should you compare free secure email?
There is no basis here to name either service the universally most secure. Choose based on the features you need and how each provider documents encryption for the messages you send, including messages to people outside its network. Also check that its apps and workflow fit your devices and how you use email.
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- Compare current free-plan features and limits on each provider’s official pricing page.
- Look at the provider’s explanation of encryption for messages within its network and messages to outside recipients.
- Confirm that the apps and workflow you rely on are supported.
The cited provider pages describe their own products; they do not establish an independent, comprehensive security comparison. Treat claims about each service’s encryption as the provider’s account of its design, not proof that one service wins for every user.
Quick Recap
Best Value
- The information below is per-pack only
- POWERFUL SECURITY KEY: The Security Key C NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key C NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key C NFC via USB-C and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
Rank #4
- POWERFUL SECURITY KEY: The Security Key NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key NFC via USB-A and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
Rank #3
- POWERFUL SECURITY KEY: The YubiKey 5 NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5 NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5 NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
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