Best Anti-spam 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 anti-spam software can significantly improve your workflow and help you compete more effectively. Here, we feature the top anti-spam software solutions designed for small businesses—offering affordable pricing, user-friendly interfaces, and scalable features that grow alongside your company.

Last Updated: September 18, 2025

  • All Software All Software

105 Software

Popular Picks in Anti-spam Software

ESET Endpoint Security

ESET Endpoint Security

$211 Per year

GeeTest CAPTCHA

GeeTest CAPTCHA

$3000 Per year

LeanMail

LeanMail

$7.5 Per feautre

List of Top Best Anti-spam Software for Small Businesses

Pricing Options

Monthly Subscription

Annual Subscription

One-Time Payment

Quote Based

Features

No Features

Company Size

Self Employed

Small Business

Medium Business

Enterprise

I'm looking for Anti-spam Software that is:

Avanan is an advanced email security software designed to protect organizations from phishing attacks, malware, and other email threats. This comprehensive platform offers features such as realtime threat detection, encryption, and compliance management, enabling businesses to safeguard their email communications effectively. With its userfriendly interface, IT teams can easily monitor email traff... Read more about Avanan

Free Trial

Available

Pricing Type

$4 Per user

Location

United States

ESET Endpoint Security is a robust solution for businesses seeking to fortify their cyber defenses. It stands out with its multi-layered security approach, combining traditional antivirus with advanced techniques like machine learning. This mix ensures effective defense against viruses, malware, and emerging threats. Unique to ESET is its low system footprint, ensuring security without compromisin... Read more about ESET Endpoint Security

Free Trial

Available

Pricing Type

$211 Per year

Location

Slovakia

GeeTest CAPTCHA is an advanced website security software designed to protect online platforms from bots and fraudulent activities. This platform offers innovative CAPTCHA solutions that enhance user experience while ensuring robust security measures. With features such as interactive CAPTCHA challenges, real-time risk assessment, and seamless integration with various web applications, GeeTest empo... Read more about GeeTest CAPTCHA

Free Trial

Available

Pricing Type

$3000 Per year

Location

China

LeanMail is a comprehensive email management software that helps businesses and individuals improve their email productivity and organization. The platform offers a suite of tools to streamline email workflows, from sorting and filtering to archiving and responding. LeanMail’s smart categorization system automatically sorts incoming emails based on predefined rules, ensuring that important messa... Read more about LeanMail

Free Trial

Available

Pricing Type

$7.5 Per feautre

Location

Denmark

Area 1 is a cutting-edge cybersecurity software designed to protect organizations from phishing attacks and other cyber threats. With its proactive approach, Area 1 identifies and mitigates risks before they reach users, enhancing overall security posture. The software features an intuitive interface that provides real-time visibility into potential threats and vulnerabilities. Area 1 employs adva... Read more about Area 1

Free Trial

Available

Pricing Type

Contact Vendor

Location

United States

Microsoft Defender for Office 365 is an advanced email security software that protects businesses from phishing attacks, malware, and other email-based threats. It provides real-time protection against malicious attachments, links, and impersonation attempts, reducing the risk of data breaches and compromised accounts. The platform integrates seamlessly with Microsoft Office 365, offering automate... Read more about Microsoft Defender for Office 365

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

Cisco Secure Email is a robust Email Security Software designed to protect organizations from a wide range of email-based threats, including phishing, malware, and spam. It offers a comprehensive suite of tools for securing email communications, ensuring that sensitive information remains confidential and systems are safeguarded against cyberattacks. Cisco Secure Email features advanced threat det... Read more about Cisco Secure Email

Free Trial

Available

Pricing Type

Contact Vendor

Location

United States

Akismet is an anti-spam software that protects websites and blogs from spam comments and malicious content. It uses machine learning algorithms to filter out unwanted messages, ensuring that only legitimate comments reach public view. Akismet operates in real-time, detecting spam and blocking it before it affects website credibility or user experience. The software provides an easy-to-use dashboar... Read more about Akismet

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

Symantec Email Security.cloud is a robust email security solution designed to protect organizations from a wide range of emailborne threats, including spam, phishing, and malware. This cloudbased platform utilizes advanced threat intelligence and machine learning algorithms to identify and block malicious emails before they reach users' inboxes. With customizable filtering options, organizations c... Read more about Symantec Email Security.cloud

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

Coolnew PDF is a versatile PDF editor software that allows users to create, edit, and manipulate PDF files with ease. Whether for business, academic, or personal use, Coolnew PDF provides a comprehensive set of tools to manage PDF documents, offering features such as text editing, form filling, image insertion, and annotation. The software allows users to add, delete, or modify text within PDF doc... Read more about Trend Micro Smart Protection Complete Suite

Free Trial

Available

Pricing Type

$49 Per year

Location

Japan

ESET Home Office Security Pack is an all-in-one computer security solution designed to protect home office environments from a wide range of online threats. With the rise of remote work, ESET offers powerful antivirus protection, firewall capabilities, and anti-phishing tools to safeguard devices and sensitive data. The software provides real-time protection against viruses, malware, ransomware, a... Read more about ESET Home Office Security Pack

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

Superior protection with continuous threat hunting and monitoring via 24/7 managed detection & response service

ESET PROTECT MDR (Managed Detection and Response) is a sophisticated endpoint protection software that offers continuous monitoring, detection, and response capabilities to safeguard networks from potential threats. Designed for businesses of all sizes, ESET PROTECT MDR delivers advanced protection against malware, ransomware, and other cybersecurity risks by combining ESET's endpoint security sol... Read more about ESET PROTECT MDR

Free Trial

NA

Pricing Type

$211 Per year

Location

United States

McAfee Security for Email Servers is an email security software solution designed to safeguard organizations from email-borne threats, including phishing attacks, malware, and spam. The platform uses advanced filtering techniques to scan incoming and outgoing emails for malicious content, blocking harmful attachments, links, and suspicious messages. McAfee’s software also provides email encrypti... Read more about McAfee Security for Email Servers

Free Trial

Available

Pricing Type

Contact Vendor

Location

United States

ESET Cloud Office Security is an advanced anti-spam and cybersecurity solution designed to protect businesses using cloud-based productivity tools like Microsoft 365 and Google Workspace. It offers real-time email security, blocking phishing attempts, spam, malware, and other malicious threats. ESET Cloud Office Security leverages a multi-layered defense strategy, combining AI-based detection, beh... Read more about ESET Cloud Office Security

Free Trial

Available

Pricing Type

$121.5 Per user

Location

United States

Malwarebytes for Teams is a computer security software designed to protect businesses from malware, ransomware, and other malicious attacks. It offers real-time protection, scanning for threats and blocking harmful content across all devices connected to the network. Malwarebytes for Teams provides a central dashboard where IT administrators can manage security settings, monitor the status of devi... Read more about Malwarebytes for Teams

Free Trial

NA

Pricing Type

$49.99 Per user

Location

United States

Engineer’s Toolset is a comprehensive network troubleshooting software designed for IT professionals seeking to diagnose and resolve network issues quickly. This toolkit includes various utilities for network diagnostics, monitoring, and management, enabling users to assess network health and performance. Engineer’s Toolset offers tools for monitoring network traffic, analyzing bandwidth usage... Read more about Engineer's Toolset

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

Complete protection from complex threats

Barracuda Sentinel is an anti-spam software that leverages AI-powered detection to protect organizations from phishing, impersonation attacks, and email-based threats. Sentinel provides advanced threat intelligence that identifies and blocks suspicious emails before they reach users, reducing the risk of data breaches and fraud. The software works seamlessly with cloud-based email services, includ... Read more about Barracuda Sentinel

Free Trial

Available

Pricing Type

Contact Vendor

Location

United States

MxToolbox Adaptive Blacklist Monitoring is an advanced anti-spam software solution designed to protect businesses from malicious email threats. The platform monitors email blacklists and ensures that businesses' email servers are not blacklisted, preventing disruption to email communications. It offers real-time monitoring, alerts, and comprehensive reports that allow users to quickly address pote... Read more about MxToolbox Adaptive Blacklist Monitoring

Free Trial

NA

Pricing Type

Contact Vendor

Location

United States

Simplify Microsoft 365 governance, administration, and security

M365 Manager Plus is a comprehensive IT management software designed to streamline and optimize the administration of Microsoft 365 environments for businesses of all sizes. The platform offers a wide range of tools for managing user accounts, licenses, permissions, and security settings, ensuring that organizations can efficiently oversee their Microsoft 365 deployments. M365 Manager Plus’s int... Read more about M365 Manager Plus

Free Trial

Available

Pricing Type

$345 Per feautre

Location

United States

GFI MailEssentials is an email security software designed to protect businesses from spam, viruses, phishing attacks, and other email-borne threats. It offers robust filtering tools that block unwanted or malicious emails before they reach the inbox, safeguarding the organization’s network. The software includes multi-layered protection, using various antivirus engines and anti-spam techniques t... Read more about GFI MailEssentials

Free Trial

NA

Pricing Type

Contact Vendor

Location

Malta

Radware Bot Manager is a cutting-edge bot detection and mitigation software designed to protect websites, applications, and digital platforms from malicious bot traffic. The platform provides real-time monitoring and advanced algorithms that detect and block harmful bots, ensuring that businesses can safeguard their digital assets and prevent fraud. Radware Bot Manager identifies various types of ... Read more about Radware Bot Manager

Free Trial

Available

Pricing Type

Contact Vendor

Location

United States

SPAMfighter Exchange Module is a highly effective network security software designed to protect email servers from spam, malware, and phishing attacks. It integrates seamlessly with Microsoft Exchange Server to provide real-time filtering and protection against unwanted emails. The software uses advanced algorithms to detect and block spam and other security threats before they reach the inbox, en... Read more about SPAMfighter Exchange Module

Free Trial

Available

Pricing Type

Contact Vendor

Location

Denmark

Truecaller is an anti-spam software designed to help users identify and block unwanted calls, spam messages, and fraudulent activities. The platform uses a large database of phone numbers and crowdsourced data to detect spam and telemarketing calls in real-time, alerting users before they pick up the phone. Truecaller provides advanced features like call blocking, number lookup, and caller identif... Read more about Truecaller

Free Trial

NA

Pricing Type

Contact Vendor

Location

Sweden

One Platform. Total Security.

Heimdal Email Security is a robust anti-spam software designed to protect organizations from email-based threats such as phishing, malware, and spam. With its advanced threat detection and filtering capabilities, Heimdal Email Security ensures that suspicious emails are blocked before reaching users’ inboxes. The software leverages machine learning algorithms to identify emerging threats, provid... Read more about Heimdal Email Security

Free Trial

Available

Pricing Type

Contact Vendor

Location

Denmark

Pobox is an anti-spam software designed to protect users from unwanted emails, phishing attempts, and malware. The platform provides powerful email filtering tools that automatically detect and block spam messages before they reach the inbox. Pobox uses advanced algorithms to analyze email content, metadata, and sender reputation, ensuring that only legitimate messages are delivered to users. The ... Read more about Pobox

Free Trial

NA

Pricing Type

$20 Per feautre

Location

Australia

Explore Today’s Featured List of Top Best Anti-spam Software for Small Businesses

SpamHero is a robust antispam software designed to protect organizations from unwanted email and enhance overall email security. With its advanced filtering technology, SpamHero effectively identifies and blocks spam, phishing attacks, and malware, ensuring that users receive only legitimate emails. The platform uses sophisticated algorithms and machine learning to adapt to evolving spam technique... Read more about SpamHero

Free Trial

Available

Pricing Type

$7 Per month

Location

United States

Spambrella is a comprehensive email management solution that focuses on enhancing email security, filtering spam, and improving email deliverability for organizations. This cloud-based software provides robust email protection by blocking unwanted messages, phishing attempts, and malicious content before they enter the corporate network. Spambrella uses advanced machine learning algorithms to cons... Read more about Spambrella

Free Trial

Available

Pricing Type

$1 Per month

Location

United States

MagicSpam is a powerful anti-spam software designed to protect businesses from unwanted email threats while ensuring that legitimate communications are not disrupted. This user-friendly solution provides advanced filtering capabilities that effectively identify and block spam, phishing attempts, and other malicious emails before they reach users' inboxes. With its real-time monitoring features, Ma... Read more about MagicSpam

Free Trial

NA

Pricing Type

$12.99 Per month

Location

United States

No buyer guide found.