Email Spam Filter Software

Best Email Spam Filter Software include:

MailWasher, MailCleaner, Truecaller, DuoCircle and Hornetsecurity Email Spam Filter and Malware Protection Service.

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Avanan, from Check Point since the August 2021 acquisition, connects security technologies to enterprise cloud applications in order to improve protection of sensitive corporate data and IP. According to the vendor, Avanan's one-click deployment allows customers to deploy a new security…

Proofpoint Email Protection

Proofpoint Email Protection is available as an on-premise or cloud based solution and blocks unwanted, malicious and impostor emails with granular search capabilities and visibility into all messages. Outbound controls include encryption and data loss prevention, while continuity…

Mimecast Advanced Email Security

The Mimecast Secure Email Gateway is a messaging security option with anti-spam / anti-malware, data loss prevention, large file send, and other features, from UK company Mimecast.

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Webroot Email Security Powered by Zix

Webroot Email Security Powered by Zix (formerly Zix Email Threat Protection) solution provides a suite of productivity, email security, and compliance tools built on a secure, easy-to-manage platform designed to help users meet these challenges. It combines Microsoft 365 services,…

AVG AntiVirus Business Edition

AVG AntiVirus is available in a Business Edition, featuring malware protection and virus scanning for endpoints and networks.

Trend Micro Email Security

Trend Micro Email Security stops phishing, ransomware, and BEC attacks, and uses an optimum blend of cross-generational threat techniques, like machine learning, sandbox analysis, data loss prevention (DLP), and other methods to stop email threats. The solution connects with other…

Paubox Email Suite

Paubox, headquarted in San Francisco, offers their HIPAA compliant encrypted email service, the Paubox Email Suite, which features Encrypted Email, Inbound Security with ExecProtect, and Email DLP under one subscription.

N-able Mail Assure

SolarWinds offers Mail Assure, a cloud-based email security solution designed to help customers stay in control and protect their inbound and outbound email using collective threat intelligence, 24/7 email continuity, and long-term email archiving.

SpamTitan Email Security

SpamTitan blocks unsolicited emails, phishing attempts, spoofing and illicit content. According to the vendor, SpamTitan blocks over 99.9% of spam, viruses, malware, and other email threats.


SaneBox helps clean up your inbox and management messages.


MailWasher is spam filter software from Firetrust, an email security specialist headquartered in New Zealand. It is presented as an easy way to check and manage e-mails before downloading them to a computer. It is available free, or as part of a premium subscription.

MX Layer

MX Layer is an enterprise security company based in the United States, focusing on providing cloud-based solutions for email security, business continuity, data loss prevention and email archiving services. MX Layer aims to ensure that their comprehensive email security platform…

MailGate SC

MailGate SC, formerly from Axway and now from an independent Mailgate, is a email security solution that protects organizations from a wide range of advanced threats. The MailGate platform provides end-to-end email security with patented technology with advanced threat protection,…

Symantec mail security for Microsoft Exchange

Symantec Mail Security for Microsoft Exchange (SMSMSE) combines Symantec anti-malware technology with advanced heuristics and file reputation to provide real-time protection for email against viruses, spyware, phishing, and other malicious attacks. For additional protection, SMSMSE…


PhishProtection, from DuoCircle headquartered in San Diego, is a software solution designed to defend all users against impersonation, phishing and ransomware attacks.

Mimecast Integrated Cloud Email Security

Mimecast's Cloud Integrated Email Security solution protects Microsoft 365 email and is used to block sophisticated email-based threats. Mimecast combines detection capabilities with instantaneous deployment, administration, and optimized M365 protections. It is purpose-built to…

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SpyderMail email security is an enterprise-level solution providing protection against email-borne threats, with the ability to use customer, per-user settings, mailbox quarantining, and other tools. It can be tried free for two weeks.

GFI MailEssentials

GFI MailEssentials is used to block spoofed emails, stop emails from blacklisted DNSs or those that link to known problem URLs or phishing sites, remove non-RFC compliant emails, detect emails from forged senders and more techniques to slash the spam waste.

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An email security solution available from 1997, MailRoute features integrations with Google Workspace and Microsoft 365, that includes granular controls and advanced admin tools for defense contractors, governments, and GCC High for Gov Cloud users.

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MagicSpam is a spam protection add-on for email servers, developed by LinuxMagic headquartered in Vancouver, British Columbia.

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Retruster is a solution designed to stop email phishing. It is presented as a solution designed to protect users against phishing emails, ransomware & fraud with what the vendor presents as a non-intrusive solution.

Menlo Security Email Isolation

A solution to render dangerous email links threatless without disrupting the user experience, from Menlo Security.

Perception Point Advanced Threat Protection

Perception Point is a Prevention-as-a-Service company, offering interception of any content-based attack across all collaboration channels including email, cloud storage, CRM apps, and messaging platforms. The service aims to prevent phishing, BEC, spam, malware, Zero-days, N-days…

Learn More About Email Spam Filter Software

What is Email Spam Filter Software?

Email spam filter software, also known as email anti-spam software, is used to prevent malicious content from being delivered by email and to prevent sensitive information from being leaked through email. The software uses AI and machine learning to scan emails and attachments for potential threats and then blocks or quarantines the delivery of suspicious messages.

An email’s header, sender and recipient IP addresses, message content, attachments, and links are evaluated for questionable characteristics. Email viruses, malware, malicious links, phishing attacks, spoofing/impersonation, ransomware, and spam are identified.

Organizations and businesses use email filtering software to stop phishing attacks and the inadvertent downloading of malware. The intent of both phishing attacks and malware is to take advantage of an email recipient’s lack of awareness to gain access to proprietary information and resources. This software helps to prevent compromising a company’s confidential data and its IT infrastructure.

Email administrators can whitelist known senders and approved content providers, and blacklist bad actors. Email filtering supports the routing of email into a variety of designated categories and folders for wanted and unwanted emails such as bulk mail and junk mail. Increasingly, artificial neural networks are being used to identify personal preferences when organizing email inboxes.

Email filtering software tools provide encryption and scanning for outgoing emails. Data Loss Prevention (DLP) features prevent the inadvertent or intentional leaking of sensitive data from a business. Account takeover protection prevents hacked accounts from sending out restricted information. This preserves an organization’s reputation and integrity by halting the distribution of questionable content and confidential information.

Email Spam Filter Software Features

  • Filters emails for viruses, malware, malicious links, phishing attacks, spoofing/impersonation, ransomware, bulk mail, spam, and junk mail
  • Real-time threat intelligence and protection
  • Blacklisting, quarantine, whitelisting, and greylisting
  • Url click-time protection
  • Outbound email encryption
  • Data loss prevention – scanning outbound email for sensitive information
  • Account take over protection – prevents hacked accounts from sending restricted information
  • Spam scoring
  • Categorization and routing of emails to designated folders
  • Unwanted email management
  • Email tracking and reporting, dashboards
  • Cloud-based and on-premises deployment options

Email Spam Filter Software Comparison

Consider the following when purchasing spam filter software:

  • Use Case: Some products have additional functionality such as securing MS Office 365, G Suite, cloud-based drives and storage, collaboration software, or securing a range of other endpoint software and devices. Determine the scope of your requirements when evaluating this software.
  • Cloud-based vs On-premises: Cloud-based deployments usually take less time to implement and are less expensive. On the other hand, on-premise deployments can be more customizable than SaaS applications. Does your current software infrastructure support a cloud-based implementation? What type of customization requirements do you have?

Pricing Information

Entry-level pricing begins at $1 per user, per month and can range up to $8 per user per month. Enterprise-level features require obtaining a vendor quote. Free trials and free versions with limited features are available.

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Frequently Asked Questions

What does email spam filter software do?

Email filtering software examines emails to detect, block, and quarantine malicious and unwanted emails. This prevents viruses, malware, phishing attacks, and ransomware from compromising a business’s or organization’s data and networks. These tools also help prevent the leaking of sensitive information through outgoing emails.

What are the benefits of using email spam filter software?

Some of the biggest benefits of using an email spam filtering product include:

  • Protects an organization’s people, brand, data, and IT infrastructure from malicious actors.
  • Better email management by the automated scoring, tracking, categorizing, and routing of emails.

What are the best email spam filter software products?

How much does email spam filter software cost?

Pricing begins at $1 per user, per month and can range up to $8 per user per month.