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Email Security Software for Linux - Page 2

Last updated: March 2026

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35 software options

NoID logo

We protect email, what you write, read and attach

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NoID is a cloud-based secure email encryption platform. NoID SecureEmail delivers emails from A to B encrypted "On send", and decrypted "On receive". It runs parallel to the existing email solution without any requirement to change any part of it.

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Ericsson NetCloud Manager logo

Manage network connectivity and security from anywhere.

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NetCloud SASE email security protects against phishing, malicious attachments and malware. Websites launched from emails are isolated to keep malware away, attachments are sanitized with CDR, and unknown sites are opened as read-only to block credential entry.

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Libraesva LetsDMARC logo

Solution for managing email and domain security

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Libraesva LetsDMARC is an email authentication solution designed to enhance email reputation management and secure message delivery. By preventing cybercriminals from impersonating your domains and sending fraudulent emails, it provides a layer of protection for your business partners, employees, and customers. Users can
Libraesva LetsDMARC is the best way to prevent cybercriminals from impersonating your domains and sending fraudulent emails to your business partners, employees, and customers.

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Beeble logo

Private Encrypted Email and Cloud Without Third Party Access

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Beeble is secure email and cloud storage with end-to-end encryption. Complete privacy, no ads, and business-grade data protection.

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StartMail logo
(0)

Email platform for end-to-end email encryption

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StartMail is a privacy-first email service that keeps your inbox safe. It is designed for individual and business use. StartMail users can create an unlimited number of email aliases at no extra cost to mask their real email. Custom email addresses are available for businesses.

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StrongestLayer logo
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AI-native email security platform

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StrongestLayer’s AI Email Security leverages advanced Large Language Models to understand the true intent behind every message, instantly detecting and blocking sophisticated phishing, zero-day exploits, and BEC scams. Seamlessly integrated with Microsoft 365 and Google Workspace.

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FileCap logo
(0)

Cloud-based email security and encryption solution

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FileCap is a secure file-sharing and collaboration solution that lets users send large files over email safely and easily.

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Abusix Mail Intelligence logo
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Cloud-based email security platform

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Abusix Mail Intelligence is an automated, cloud-based protection suite that enables businesses and organizations to protect their sensitive data from cyber-attacks. It protects users' mail servers and customers' inboxes from spam by orchestrating and automating your full security response including detecting malware and virus through machine learning techniques.

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Confidencial logo
(0)

Cloud-based data protection and security solution

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Confidencial is a cloud-based document security solution that enables users to protect sensitive data with granular encryption controls.

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Stalwart logo
(0)

Open-source mail and collaboration platform

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Stalwart Mail Server is an open-source email platform combining collaboration tools and security features in one unified solution.

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