Best Secure Email Gateway Software - Page 5

KeepKnown

KeepKnown is an allow-list email filter for Gmail, Outlook, and Microsoft 365. It automatically filters unknown senders out of your inbox without deleting them, ensuring you only see emails from people you know and trust. Google Verified with CASA Tier 2 security certification. The strict inbox filter that keeps your focus on what matters.

MailArmor

MailArmor.ai is an AI-powered email security platform for SMBs in India. It integrates with Microsoft 365 in 5 minutes, complies with CERT-In & DPDP, and protects against phishing, malware, and BEC.

MailGates

MailHippo

MailHippo empowers users to start sending and receiving fully-encrypted emails and fillable, signable HIPAA compliant forms within minutes. Designed for ease of use, MailHippo works with any email provider, using your existing email address, with no setup or configuration required. It’s simple yet incredibly strong, with AES 256-bit end-to-end encryption, plus encrypted key rings, for industry-leading security both in transit and at rest. And it’s totally mobile friendly, working well on any smartphone or tablet.

MailSafi

Mail Shield

Mail Shield is a fully-managed email security gateway that sits between the internet and your mail server, inspecting every inbound and outbound message before it is delivered. It blocks phishing, spear-phishing, malware and ransomware attachments, spam, spoofing and business email compromise (BEC) at the network edge - before anyone can act on them. Unlike the broad, compatibility-first defaults of built-in filters, Mail Shield is tuned and reviewed continuously by Australian engineers. Outbound filtering catches compromised accounts and protects your sending reputation so your IP does not land on blacklists, and the gateway enforces SPF, DKIM and DMARC alignment to your policy. Key features: - Inbound + outbound filtering (phishing, malware, spam, BEC, impersonation) - Dedicated spam quarantine with daily user digests and self-service release - SPF/DKIM/DMARC enforcement and anti-spoofing - Australian-hosted infrastructure - no data routed offshore (Privacy Act / data-sovereignty friendly) - Specialist-managed, not a self-service portal - tuned by the engineers who run it - Fast setup: change your MX records and you are protected, usually within the hour Pricing from AUD $25 per user per month, with no lock-in contract and no setup fee. Suits any business running Microsoft 365, Exchange or Linux/Postfix mail that wants stronger, hands-on protection than built-in defaults provide.

matriXcloud

MetaDefender Email Security Solution

OPSWAT MetaDefender Email Security provides key capabilities to advance organizations' email security posture to the maximum. Our goal is to protect organizations from email-initiated cyber attacks.

m-FILTER

Mimecast Secure Email Gateway

modusCloud

modusGate Email Security

A Powerful, On-Premise Email Security Gateway modusGate is a multi-layer anti-spam email filtering gateway harnessing 2 decades of experience. It incorporates state of the art AI through a real-time machine learning engine to effectively identify threats by reputation and advanced statistical models. We integrate layered scanning with Bitdefender and Avira Anti-Virus, providing leading defense against phishing and malware threats. The Protection You Need from Advanced Threats A multiple VBSpam+ award winner, modusGate offers affordable Anti-Spam, Anti-Malware, Targeted Phishing Protection and even our own directQuarantine Outlook Plugin. Its Artificial Intelligence Engine and real-time threat analysis catches over 99.5% of malicious emails with a 0% false positive rate (according to VBSpam tests), while also protecting you from look-alike domains and other popular methods of attack. Microsoft Email Security Solution for Outlook directQuarantine is a Microsoft Outlook plugin Vircom designed to give end-users total visibility and control over their quarantined messages and relieve IT administrators from day-to-day quarantine management. With directQuarantine users can view quarantined messages live, release false positives instantly, and sort and search emails with Outlook’s powerful search capabilities. DirectQuarantine supports MS Outlook 2016, 2013, 2010 and 2007. Reported spam is continually implemented into our algorithms providing updated protection.

MXGuardian

Safely Open

Safely Open files, emails and web sites you don't trust

SecuDoc

SecuDoc is secure email and file transfer software that protects against data breaches through encrypted communication channels. The platform includes an Outlook Add-in that enables sending secure emails and attachments directly from the email client, with installation completed in under an hour. The software supports file transfers and integrates with Office 365 for centralized management. SecuDoc Insights enhances data loss prevention by identifying sensitive information in outgoing emails, while AI-powered risk detection flags potential security threats. The platform allows electronic signing of documents such as contracts and agreements. Accessible through an Outlook Add-in or web-based application, SecuDoc maintains compliance with ISO 27001 and NEN 7510 standards. The software addresses email-based data breaches and enables file transfers far beyond standard email limitations.