Protonmail Alternatives (September 2025)

Mailfence is the only secure and private email service that gives you control. A free, interoperable encrypted email service protected by Belgian privacy law.

Tuta guarantees your data stays private for free & without ads. Quantum-resistant encryption makes Tuta the best secure technology solution to protect your privacy.

The Beeble Project is email and online cloud storage platform with unprecedented security and privacy without third party access.

Encrypt ANY Business or Personal Email in a few minutes. No need to switch email providers. Free encrypted email for Gmail, Yahoo, Microsoft.

Secure E-Mail Boolebox: to send and receive encrypted messages and attachments using the advanced security features of Boolebox. Learn more!

Mailprotector has the complete email security products your users need to cover all three comprehensive pillars: email security, encryption, and privacy.

An essential suite of email and web security services for SMB and Enterprise.

Secure email encryption helps protect individuals, SMBs, and Enterprise organizations. Learn more about compliance & secure email encryption.

Fast, secure, and sustainable email services provided by email professionals. Powerful Email and Domain Hosting for businesses and organizations.

pCloud is the most secure encrypted cloud storage, where you can store your personal files or backup your PC or share your business documents with your team!

Send encrypted email and attachments to any email address, without requiring clients to signup for a new account. Clients can send you secure messages and files with a simple link click.

Hushmail - Encrypted Email & Secure Web Forms. Our healthcare plans come configured for HIPAA compliance right out of the box.

Send HIPAA compliant emails free for 14 days.

Material is a multi-layered detection and response toolkit for email. It stops sophisticated email-based attacks and contains the blast radius of compromised accounts.

BlueMail is a modern, mobile and desktop, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP, Exchange,POP3.

OX Cloud Email - Easy, Fast, Secure - Powerful email built for business

Standard Notes helps you gain control in a world that often feels out of control. Protect your life's work with end-to-end encryption, advanced security measures, and unmatched privacy controls.

Our email encryption software allows you to work without worrying about your data security. Choose Sealit and make sure your business is protected.

Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.

Spambrella is your company for managed email security services and User Awareness Training solutions and products. Try our security services for email today!

Encrypted private vault is the easiest way to protect your files and keep them accessible. Secure all your files in a click with NordLocker.

Virtru data encryption protects data, through email and file-sharing, Cloud, SaaS, CRM solutions and across internal and external ecosystems.

Secure Mails, 500Mail by 500apps, get safe, encrypted, ad-free emails, and never worry about transmitting personal information again.

The leading CMMC, NIST, and ITAR compliance solution for SMEs. End-to-end encrypted email and file sharing.

VIPRE provides email security solutions for every size organization and the IT partners that serve them.

Host your professional email on a secure, privacy-guaranteed, and ad-free email hosting service built-in with features like email marketing services can do.

Exceptional Email Security, Email Archiving and Phishing Awareness. Libraesva stops Zero-Day Email Attacks, integrating with M365 and Google

Discover Echoworx, the industry-leading provider of cutting-edge email encryption to safeguard your sensitive communications

Ad-free Business Email Hosting with a clean, easy-to-use interface. Integrated Business Calendar, Contacts, Notes, Tasks. Free for up to 5 users.

Secure your communications with DataMotion's email encryption and document exchange. Seamlessly integrate with the apps you're most familiar with.

The award-winning Clearswift Secure Email Gateway offers an unprecedented level of email security, including cyberattack protection and data loss prevention.

Send your confidential files for free using military grade end-to-end encryption with Zero Knowledge, no password or registration required.

Award-winning cloud-based email security platform prevents phishing, malware, spoofing, and BEC, from reaching a user’s mailbox. See the Trustifi Difference.

Enhance VIPRE Email Security Cloud with unparalleled protection against malicious links and infected attachments.

Secure, private email hosting service for business or family with mobile sync apps for calendar, contacts, tasks, and notes. Get your private email account.

Cisco Secure Email Encryption Service gives senders enhanced security and reliable controls for traditional email tools.

Zimbra: A Cloud-Hosted Collaboration Software and Email Platform That Integrates With Proprietary Business Solutions

Intelligent Email Security protects against data breaches by engaging and empowering users without introducing friction.

A powerful email server that blocks 99% of junk emails. It also enables encrypted emailing with large sized file sharing and helps in preventing IP leakages

Really simple VPN to browse the web privately & securely. Unblock websites around the world with applications for Mac, PC, iOS, Android & Chrome.

Swiss based end-to-end encrypted distributed cloud with blockchain – providing the world’s most Private & Secure cloud storage & file transfer for business and personal use.

Advanced email protection to prevent credential phishing, business email compromise, account takeover, and more.

GreatHorn is an API, cloud-native email security solution that mitigates the risk of business email compromise across Microsoft 365 and Google Workspace.

Guardian Digital has developed unparalleled AI-powered business cloud email security services. Secure your business emails and stay threat-ready today.

We’re powering the next generation of secure email communications for your organization, preventing data leaks & empowering people to work securely.

This reliable and secure transactional email service by Zoho Mail ensures guaranteed and fast delivery of transactional emails, and comes with a pay-as-you-go pricing plan.

Share files securely with anyone using encrypted cloud storage. Get the highest standard of data security in the cloud.

Email Security, Archiving, Encryption, & Awareness Training. Compatible with Office 365. Virus, Phishing, Ransomware & Malware Protection.

Save on infrastructure and maintenance costs. Choose your data centre (US, EU, APAC). AWS native cloud email hosting.

Cost-effective, secure hosted email: mailboxes, calendar and address book

Take back control of your email with this easy-to-deploy mail server in a box.

Email Encryption is an essential part of Secure Cloud. With Zix, we send encrypted email automagically in the background. No extra steps are required, ever.

N-able Mail Assure offers MSPs AI-driven email security with close to 100% filtering accuracy. Mail Assure also provides continuous uptime and email archiving.

INKY helps companies secure email using a cloud-based security platform that proactively and instantly scans inbound, internal, and outbound emails to eliminate phishing and malware. The platform intelligently eliminates security threats by blocking malicious emails while assisting employees in real time to handle suspicious emails.

SMX offers a cloud-based email security solution for SEG, archiving and added Microsoft 365 defence. Trusted by enterprises, governments and ISPs across ANZ.

Send large files free via email and links. Paid accounts share files of any size. Fast secure online file transfer using our file sharing site & apps.

Phishing protection including spam filtering, outbound SMTP with DKIM, backup MX services, and Advanced Threat Protection. With 24x7 support included.

Test new user signups, transactional emails, spam scores, and more. Get started on our free forever plan with unlimited email addresses and mailboxes.

MX Layer provides cutting-edge cloud-based solutions for email security, business continuity, data loss prevention, and email archiving services.

The smarter, faster way to clean out your inbox. Remove hundreds (or even thousands) of messages from your inbox all at once. You'll be amazed at how fast you can approach Inbox Zero!

Real-time link click protection defends against malicious links in emails every time, on every device, from anywhere.

Secure your business emails. Train your employees to cyber attacks. Protect your emails with Mailinblack.

Symantec Messaging Gateway protects email against spam, malware, targeted attacks and provides advanced content filtering, data loss prevention, and email encryption.

Sign in to your Outlook.com, Hotmail.com, MSN.com or Live.com account. Download the free desktop and mobile app to connect all your email accounts, including Gmail, Yahoo, and iCloud, in one place.

Securely archive, search, and analyze your company's email on one platform, preserving vital data while gaining instant business insights.

Email security is critical for all organizations. Block all email attacks using Mimecast's advanced email security product with targeted threat protection.

Newton supercharges your email with powerful features like Read Receipts, Send Later, Snooze & more. Works with Gmail, Google Apps, Exchange, Outlook, Office365, iCloud, Yahoo & IMAP.

Set up email forwarding in seconds and start receiving and sending emails with your domain name. Absolutely free. No registration. 24/7 Support.

Leading mail server and webmail client, XGenPlus offering fast, secure, and reliable emailing services supporting linguistic domains - World's first enterprise email solution.

Easy to use advanced file encryption software for your business and personal data with cloud storage, mobile encryption and password manager. Get a free trial now

Dashlane is the secure way for businesses and individuals to protect passwords, manage credentials, prevent breaches, and safeguard sensitive information in one easy-to-use platform.

Encrypt Dropbox, Google Drive, and any other cloud. Cryptomator is free and open source.

Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!

SMTP2GO is the scalable, reliable email deliverability solution. Worldwide servers, a robust API, and powerful reporting set us apart. Try our free plan!

Protect your business e-mail from cyberattacks: phishing, ransomware, spam, viruses. Installation in just a few clicks. French solution 🇫🇷

Send your Transactional and marketing Emails safely, track your results and use powerful APIs designed for devolopers by developers. Try for free

Cloud Email Protection, the integrated cloud email security solution from Fortra, stops advanced threats that bypass security defenses and make it into inboxes.

Buy SMTP service. 99% Inbox. Free to test. Best price/quality SMTP offer. Buy with Bitcoin. Send, receive, route/forward emails.

Mailtrim provides secure Free email client software with its unique team collaboration Feature and is designed to serve the mailing needs of all business

Forget all about malware, phishing and identity theft. Guardio cleans, protects, and keeps you and your browser safe.

Protect your enterprise with best in breed email security from Sendio. Eliminate ransomware, phishing attacks, spam and malware using behavioral technology.

Boost your email security with Proofpoint Essentials and OnDMARC; protect your business against phishing, ransomware, and fraud.

IRONSCALES’ cloud email security software is an AI-powered email platform for enterprise organizations. Our self-learning service protects against advanced email attacks that bypass traditional defenses.

Email Monster acts as a firewall for your email address. You never have to reveal your real email anymore, by masking your email with unlimited temporary forwarding addresses. Also, it helps fight inbox clutter with delayed future emails and sender blocking, even without unsubscribe links.

MailGuard is a leading Australian technological innovator, providing complete enterprise-grade protection against email security threats such as phishing, ransomware, and BEC. First to stop fast breaking attacks, MailGuard detects and prevents email threats 2-48 hours ahead of the market.

Secure your business with total messaging control. Cybonet stops the majority of malicious email threats at your network's perimeter while simultaneously providing a range of additional options for comprehensive security and messaging control.

Bitwarden makes it easy for businesses and individuals to securely generate, store, and share passwords from any location, browser, or device. Create your free Bitwarden account today.

Keybase is for keeping everyone's chats and files safe, from families to communities to companies. MacOS, Windows, Linux, iPhone, and Android.

AdGuard is the best way to get rid of annoying ads and online tracking and protect your computer from malware. Make your web surfing fast, safe and ad-free

Fast email client with full Gmail, Hotmail and other services synchronization. Best replacement for MS Outlook or Thunderbird. Free version for Home users.

CyberHoot is the easiest security awareness training platform. CyberHoot offers training, phish testing, and policy compliance.

Mailspring: The open-source, extensible email app for Mac, Linux, and Windows with open tracking, link click tracking, contacts enrichment data and more.

GnuPG is a free implementation of OpenPGP

Easy to Install and manage, carrier class Mail Server Software with modern fast WebMail interface, spam protection and much more.

Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!

DNS filtering and DNS web filtering solution providing AI driven threat protection and advanced web content controls for MSPs.

With Boolebox cyber security solutions we protect your data everywhere, also in the most commonly used platforms. See more!

The only secure-by-design Secure Access Platform. Eliminates access risks with SSO, Zero-Trust Identity architecture, phish-resistant MFA, Device Trust and Passwordless capabilities. The secure alternative to Okta, Microsoft Entra, Google MFA, and more.

Email Delivery Platform to test, send and control email infrastructure in one place. Great for dev teams. Start today - Sign Up free!