Best Online Email Security Software

In an always-connected world, many businesses prefer email security software solutions that require no local installation. Below, you’ll find top online email security software platforms—often referred to as cloud-based or web-based—offering easy subscription models, automatic updates, and seamless remote access. Explore these recommended tools to streamline workflows, enhance collaboration, and keep your team productive from anywhere.

Last Updated: September 18, 2025

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List of Top Web-Based Email Security Software

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Topsec Managed Email Security is a powerful email security software solution designed to protect businesses from email-based threats, including phishing, malware, and spam. With cyber threats evolving rapidly, Topsec offers an advanced set of tools to safeguard email communication, ensuring that sensitive information is protected from malicious attacks. The software provides real-time monitoring a... Read more about Topsec Managed Email Security

Free Trial

NA

Pricing Type

Contact Vendor

Location

Ireland

Topsec Inbox Protect is an advanced email security software solution designed to protect businesses from threats that originate in email inboxes. With the growing risk of phishing, malware, and social engineering attacks, Topsec Inbox Protect provides a proactive approach to email security. The platform uses artificial intelligence and machine learning to scan incoming emails in real-time, detecti... Read more about Topsec Inbox Protect

Free Trial

NA

Pricing Type

Contact Vendor

Location

Ireland

BigHand Metadata Management is an email security software solution that helps organizations protect sensitive information and manage email metadata effectively. In today’s digital age, email is one of the most common sources of data breaches, as confidential information can be inadvertently shared with unauthorized recipients. BigHand’s Metadata Management tool ensures that sensitive informati... Read more about BigHand Metadata Management

Free Trial

NA

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Location

United Kingdom

mxHERO for Legal QuickStart is an email management software designed specifically for legal professionals to streamline the processing and organization of emails. The platform automates the extraction of important data, such as dates, names, and case references, from legal emails and documents. mxHERO for Legal QuickStart helps law firms organize their email communications by automatically categor... Read more about mxHERO for Legal QuickStart

Free Trial

NA

Pricing Type

$2995 Per year

Location

United States

mxHERO Email Attachment Protection is an Email Security Software designed to secure email attachments and protect businesses from data leaks and malware threats. The platform automatically scans and secures attachments before they are sent or received via email, ensuring that sensitive information remains protected. mxHERO offers real-time attachment encryption, watermarking, and digital rights ma... Read more about mxHERO Email Attachment Protection

Free Trial

Available

Pricing Type

$10 Per user

Location

United States

mxHERO Ransom Radar is an Email Security Software that protects organizations from ransomware threats by monitoring email attachments and links for malicious content. The platform’s advanced scanning algorithms detect suspicious files, warning users before they open potential threats. mxHERO Ransom Radar integrates with popular email providers, making it easy to deploy without disrupting workflo... Read more about mxHERO Ransom Radar

Free Trial

NA

Pricing Type

$10 Per user

Location

United States

iQ.Suite aaS is an advanced email security solution designed to protect businesses from email-borne threats such as phishing, spam, and malware. By using powerful filtering algorithms, iQ.Suite aaS can accurately identify and block malicious emails before they reach your inbox. This cloud-based service provides a highly customizable approach to email security, enabling businesses to set specific s... Read more about iQ.Suite aaS

Free Trial

NA

Pricing Type

Contact Vendor

Location

Germany

Protective DNS & Content Filtering Solutions

DNSFilter is an innovative web content filtering and threat protection software designed to enhance internet safety and efficiency. Its core functionality lies in using AI-driven analysis to block access to malicious and unwanted websites in real-time, ensuring robust cybersecurity. A key feature of DNSFilter is its user-friendly dashboard, which provides detailed reports and analytics, allowing f... Read more about DNSFilter

Free Trial

14 Days

Pricing Type

$1.90 Per month

Location

United States

MailChannels is an innovative Anti Spam Software designed to protect businesses from unwanted email threats and ensure secure communication. This platform provides a comprehensive suite of tools for filtering and managing incoming email traffic, reducing spam and phishing attempts. Users can easily configure filtering rules, monitor email delivery, and analyze threat patterns, ensuring that only l... Read more about MailChannels

Free Trial

Available

Pricing Type

$79.99 Per month

Location

Canada

Red Sift OnDMARC is a cybersecurity software solution focused on email security, helping organizations prevent email spoofing and phishing attacks through DMARC (Domain-based Message Authentication, Reporting & Conformance) compliance. OnDMARC provides automated tools to set up and monitor DMARC policies, ensuring that only authorized users can send emails from a company’s domain. Its intuitive ... Read more about Red Sift OnDMARC

Free Trial

Available

Pricing Type

$35 Per month

Location

United Kingdom

AI Powered Email Security & Compliance

Trustifi is an advanced email security software designed to protect organizations from phishing, spam, malware, and data breaches through email communications. It offers end-to-end encryption, ensuring that sensitive information shared via email is protected from unauthorized access. Trustifi integrates seamlessly with existing email platforms, such as Gmail or Microsoft Outlook, providing an adde... Read more about Trustifi

Free Trial

NA

Pricing Type

$3 Per month

Location

United States

Echoworx is a robust email security software solution designed to protect businesses from email-based threats such as phishing, malware, and data breaches. With its comprehensive encryption and authentication features, Echoworx ensures that sensitive information transmitted via email is secure and confidential. The software provides advanced tools for email encryption, secure file sharing, and dig... Read more about Echoworx

Free Trial

NA

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Contact Vendor

Location

Canada

Censornet Email Security is a comprehensive solution designed to protect organizations from email-based threats such as phishing, malware, and spam. The platform uses advanced machine learning and AI algorithms to analyze incoming and outgoing emails, detecting suspicious content and automatically filtering out potential threats before they reach the inbox. Censornet Email Security also includes a... Read more about Censornet Email Security

Free Trial

NA

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Contact Vendor

Location

United Kingdom

InboxGuard is a security awareness training software focused on educating employees about cybersecurity risks, particularly phishing and email threats. The platform offers interactive training modules, simulations, and quizzes that keep employees engaged and informed about safe email practices. InboxGuard’s phishing simulation feature allows companies to send mock phishing emails to employees, h... Read more about InboxGuard

Free Trial

Available

Pricing Type

Contact Vendor

Location

United States

Guardz is a comprehensive vulnerability scanner software designed to protect businesses from security threats by identifying weaknesses in their IT infrastructure. The platform scans networks, servers, applications, and devices to detect vulnerabilities such as unpatched software, misconfigurations, and security gaps. Guardz uses advanced scanning techniques to detect both known and unknown vulner... Read more about Guardz

Free Trial

Available

Pricing Type

$0 Per year

Location

Israel

EveryCloud Antispam is a cutting-edge Email Security Software designed to protect organizations from spam, phishing, and other email-based threats. It offers a comprehensive solution that filters incoming and outgoing emails, ensuring that only legitimate and safe messages reach users' inboxes. EveryCloud Antispam employs advanced algorithms and machine learning techniques to detect and block mali... Read more about EveryCloud Antispam

Free Trial

Available

Pricing Type

Contact Vendor

Location

United Kingdom

Automated Human Risk Management

usecure is an innovative software solution focused on human risk management designed to enhance cybersecurity awareness and behavior within organizations. Its key feature is personalized security awareness training, which tailors content to individual user risk profiles, making learning more effective. usecure excels in simulated phishing tests, enabling organizations to assess and reduce suscepti... Read more about usecure

Free Trial

14 Days

Pricing Type

Contact Vendor

Location

United Kingdom

Delivery Trust is an advanced email management software designed to enhance the security and efficiency of email communications. This platform provides comprehensive tools for managing email delivery, ensuring that important messages are sent and received securely. Users can track email interactions and verify delivery status, facilitating compliance with regulatory standards. Delivery Trust featu... Read more about Delivery Trust

Free Trial

Available

Pricing Type

$7.95 Per user

Location

United States

DMARC Analyzer is a specialized email security software designed to help organizations protect their email communications from phishing and spoofing attacks. This powerful platform enables businesses to implement DMARC (Domain-based Message Authentication, Reporting, and Conformance) policies effectively, ensuring that their emails are authenticated and delivered securely. With DMARC Analyzer, use... Read more about DMARC Analyzer

Free Trial

Available

Pricing Type

Contact Vendor

Location

Netherlands

Email Shield is an accounts payable software designed to protect businesses from fraudulent invoices and payment-related scams. The platform provides tools for verifying invoice authenticity, monitoring transaction histories, and identifying suspicious activity, ensuring financial security. Email Shield’s analytics deliver insights into payment trends, potential risks, and fraud detection rates,... Read more about Email Shield

Free Trial

Available

Pricing Type

$0.02 Per month

Location

United States

Zivver is a secure file sharing software designed to provide businesses with reliable and encrypted solutions for exchanging sensitive information effortlessly. It offers a comprehensive platform for sending, receiving, and managing files with advanced security measures, ensuring that confidential data remains protected against unauthorized access and cyber threats. Zivver features intuitive inter... Read more about Zivver

Free Trial

NA

Pricing Type

$3.99 Per user

Location

Netherlands

Mailwall is a robust email security software solution designed to protect organizations from email-based threats, such as phishing, malware, and spam. The platform uses advanced algorithms and machine learning to analyze incoming emails, detect malicious attachments, and block harmful links before they can reach users' inboxes. Mailwall’s real-time scanning and filtering capabilities ensure that... Read more about Mailwall

Free Trial

Available

Pricing Type

$1.5 Per month

Location

United Kingdom

Abusix Mail Intelligence is an email security software designed to protect businesses from spam, phishing, and other email-based threats. It offers advanced filtering techniques, including machine learning and AI, to detect and block malicious emails before they reach inboxes. Abusix Mail Intelligence features customizable rules for email handling, including quarantine options and automated report... Read more about Abusix Mail Intelligence

Free Trial

Available

Pricing Type

$10 Per month

Location

United States

MailTAC is an advanced email security software solution designed to protect businesses from email-based threats, such as phishing, malware, and spam. With MailTAC, organizations can safeguard their email communications by filtering out harmful messages and blocking malicious attachments before they reach employees' inboxes. The software uses artificial intelligence and machine learning algorithms ... Read more about MailTAC

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

DMARCLY is a comprehensive email security software designed to protect businesses from email-based threats such as phishing, malware, and spam. Utilizing advanced machine learning algorithms, DMARCLY identifies and mitigates potential risks in real-time, ensuring that your organization's communication remains secure and reliable. The platform offers robust features including email authentication, ... Read more about DMARCLY

Free Trial

Available

Pricing Type

$14.99 Per user

Location

Japan

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