Best Email Security Software for Small Businesses (Free & Paid)

Running a small business comes with unique challenges, including tight budgets and limited resources. That’s why choosing the right email security software can significantly improve your workflow and help you compete more effectively. Here, we feature the top email security software solutions designed for small businesses—offering affordable pricing, user-friendly interfaces, and scalable features that grow alongside your company.

Last Updated: October 01, 2025

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List of Top Best Email Security Software for Small Businesses

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Self Employed

Small Business

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Alinto is a powerful email management software designed to help businesses efficiently organize, track, and optimize their email communications. It offers a comprehensive platform for managing incoming and outgoing emails, ensuring that important messages are prioritized and handled promptly. Alinto features advanced sorting and filtering options, allowing users to categorize emails based on crite... Read more about Alinto

Free Trial

NA

Pricing Type

Contact Vendor

Location

France

Xeams is an advanced cybersecurity software designed to protect organizations from email-based threats and enhance overall security posture. This platform provides comprehensive tools for spam filtering, phishing protection, and email archiving, ensuring that sensitive information is safeguarded against unauthorized access. With Xeams, users can implement robust security measures to block maliciou... Read more about Xeams

Free Trial

Available

Pricing Type

$0 Per user

Location

United States

EasyDMARC is a leading email security software designed to protect organizations from email-based threats such as phishing, spoofing, and domain abuse. This platform offers a comprehensive suite of tools that help businesses implement and manage Domain-based Message Authentication, Reporting, and Conformance (DMARC) protocols effectively. Users can monitor their email domains, assess security conf... Read more about EasyDMARC

Free Trial

Available

Pricing Type

$17.99 Per feautre

Location

United States

CipherBox is a cutting-edge cybersecurity solution that provides comprehensive protection for businesses against evolving digital threats. It employs advanced encryption technologies to secure sensitive data both in transit and at rest. CipherBox offers real-time threat detection and response capabilities, utilizing artificial intelligence and machine learning to identify and mitigate malware, ran... Read more about CipherBox

Free Trial

Available

Pricing Type

Contact Vendor

Location

United States

HENNGE One is a robust file sharing software designed to help organizations manage and secure their data across various platforms. This platform provides comprehensive tools for storing, sharing, and collaborating on files, ensuring that users can access their data securely from anywhere. With features such as end-to-end encryption, access control, and file versioning, HENNGE One empowers users to... Read more about HENNGE One

Free Trial

Available

Pricing Type

$9600 Per user

Location

Japan

Topsec Cloud Solutions is an advanced email management software designed to help businesses protect, manage, and optimize their email communications. The platform provides tools for email filtering, archiving, encryption, and spam protection, ensuring that all emails are secure and compliant with industry standards. Topsec Cloud Solutions also offers real-time email tracking and reporting features... Read more about Topsec Cloud Solutions

Free Trial

Available

Pricing Type

$20 Per user

Location

Ireland

modusCloud is an advanced email security software designed to protect organizations from various email threats, including phishing, malware, and data breaches. This comprehensive solution employs machine learning and artificial intelligence to analyze email traffic in real time, identifying and neutralizing potential threats before they reach users’ inboxes. With its userfriendly interface, modu... Read more about modusCloud

Free Trial

Available

Pricing Type

Contact Vendor

Location

Canada

XNSPY is a robust employee monitoring software designed to help businesses ensure workplace productivity and security. This tool allows employers to discreetly monitor employee activities on company-owned devices, including smartphones and computers. XNSPY provides a comprehensive set of features such as real-time location tracking, call and message monitoring, and access to emails and multimedia ... Read more about XNSPY

Free Trial

Available

Pricing Type

$59.99 Per year

Location

United States

Topsec Attachment Sandboxing is an advanced email security software that provides protection against malicious email attachments by isolating them in a secure sandbox environment. This software analyzes the contents of email attachments to detect potential threats such as malware, ransomware, or phishing attempts. When an attachment is received, it is sent to a virtual sandbox where it is opened a... Read more about Topsec Attachment Sandboxing

Free Trial

NA

Pricing Type

Contact Vendor

Location

Ireland

Topsec DMARC Protection is a robust email security solution that helps organizations safeguard their email domain from fraudulent activities, such as phishing and email spoofing. DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that ensures the emails sent from your domain are legitimate and not forged by attackers. Topsec DMARC Protection en... Read more about Topsec DMARC Protection

Free Trial

NA

Pricing Type

Contact Vendor

Location

Ireland

SafeGuard Cyber Security is a comprehensive cybersecurity software designed to protect businesses from online threats across social media, messaging platforms, and cloud applications. The platform provides real-time threat detection, monitoring, and response tools that safeguard digital communications from phishing, malware, and other cyber threats. SafeGuard Cyber Security helps organizations sta... Read more about SafeGuard Cyber Security

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

Tsukaeru MailBuster is a powerful email security software designed to protect businesses from phishing attacks, spam, and other email-based threats. The platform uses advanced algorithms and machine learning to detect and block malicious emails before they reach users' inboxes, reducing the risk of data breaches and cyberattacks. Tsukaeru MailBuster offers features such as real-time email scanning... Read more about Tsukaeru MailBuster

Free Trial

NA

Pricing Type

$10210 Per month

Location

Japan

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

TracePhishing is a cutting-edge email security software designed to protect organizations from phishing attacks and other email-based threats. This platform utilizes advanced algorithms and machine learning technologies to detect and block malicious emails in real time, ensuring that users remain safe from phishing scams and data breaches. With TracePhishing, organizations can implement customizab... Read more about TracePhishing

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

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

Pricing Type

Contact Vendor

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

Pricing Type

Contact Vendor

Location

Canada

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