Best Email Security Software for Linux

SpamTitan email security is an email spam filter for businesses, smbs, MSPs, and schools. SpamTitan email security blocks spam as well as phishing and day-zero attacks, viruses, malware, ransomware, and other email threats. Helps control mail flow, clean it, and protect against unwanted email. We provide easy-to-use yet advanced email security for businesses, smbs and MSPs that are Office365 friendly. SpamTitan - Premium functionality included: • CEO Impersonation protection • Phishing/ Spear phishing protection • Link analysis • Full Sandboxing • Zero Day Attacks protection • Mail Spooling • Spoofing protection • Malware and Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Fully multitenant environment • Ability to rebrand the entire UI • Full REST API: • Comprehensive support and set up docs Try a FREE, fully supported trial of SpamTitan Email Security today.

An advanced shield against phishing, ransomware, and evolving email-based threats. Working in harmony with your existing systems, our solution enhances your defences, whether deployed on cloud or on-premises.

RMail® is the e-security platform by RPost®, a global leader since 2000. RMail specializes in elegantly easy to use email encryption for privacy and compliance, e-signatures, legal e-delivery proof, secure file sharing, email impostor protection, document rights management, and AI-infused services to prevent data leaks and human e-security errors. RMail’s transmission e-security services are most often used by businesspeople or business systems that send important, sensitive, or consumer-regulated information. These RMail services are generally applied to those messages where the sender needs functionality beyond standard email in terms of (a) easier to use and more automated email encryption for privacy compliance, (b) returning a verifiable proof record of who said what to whom by email, (c) assurance and peace of mind related to delivery and open status of important and time-deadline email, (d) need a timestamped proof of content delivered, (f) need to share large files securely.

EmailAuth® is a TIER 1 OEM and a market leader in Email Authentication. Available 100% on-premise, or in-country cloud (local cloud) or on AWS/AZURE/GCP globally - We make it easy to unleash the power of email authentication. It is an anti-spoofing, anti-impersonation, and anti-phishing platform that ensures that no one can abuse your domains online. If anyone in the world spoofs your domains, EmailAuth collates data from all across the world to ensure that even a single unauthorized email is caught and rejected by global recipients of the world. It even extracts the IP of the sender, so this threat intelligence can be used to block the attacker across your cyber security fabric (SOAR capable). #StopGettingPhished #BeSpoofProof

Smartlockr is a people-centric data security platform to easily enable secure email and file sharing for an entire organization. Smartlockr prevents data leaks by keeping user-friendliness in mind with everything we do. By eliminating the human error, we ensure your workforce is your strongest asset in preventing data leaks. Smartlockr can be customized for each organization, so that every employee can continue to work with the (email) systems they are used to. Smartlockr can be used with almost every operating system and device. It is available as a plug-in for Microsoft 365 (Outlook), it can be integrated into existing systems and an SMTP relay service can be used too. Even a combination is possible if required. Smartlockr can also be used to securely send and receive large files of up to 5 TB. Smartlockr is compliant with all privacy regulations and security standards like GDPR, ISO, NTA 7516.