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SpamTitan is a spam filtering solution that caters to businesses, managed service providers (MSPs) and schools to help them to block spam, viruses, malware, ransomware, phishing attempts and other email threats. The solution can e...Read more about SpamTitan

Mail Assure

N-able Mail Assure is a cloud-based email security solution designed to help businesses secure incoming and outgoing emails. The protection and filtering engine uses machine learning to protect against various online threats such ...Read more about Mail Assure

Heimdal Email Security

Heimdal Email Security is a cloud and on-premise email protection solution that mixes Office 365 support with proprietary threat prevention, helping enterprises augment defenses on their most-used corporate communication channel –...Read more about Heimdal Email Security

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ContentCatcher is a cloud-based, anti-spam and email security solution designed to help businesses of all sizes manage and prevent cyber threats. The centralized platform allows businesses to scan email attachments or URLs for mal...Read more about ContentCatcher

Abnormal Security

Abnormal stops text-only based socially engineered attacks with natural language processing understanding what normal looks like to block never-before-seen attacks. Abnormal has complete visibility into all email traffic, includ...Read more about Abnormal Security

5.0 (1 reviews)


SpamHero offers a cloud-hosted spam filtering solution that can prevent spam and phishing attacks from reaching your domain. With thousands of filters added daily, SpamHero can detect new spam attacks as soon as they appear on the...Read more about SpamHero

SpamTitan Plus

SpamTitan Plus is an anti-phishing solution that helps businesses with identifying, neutralizing, and blocking suspicious or malicious links. The main features of SpamTitan Plus include time-of-click analysis, malicious link neutr...Read more about SpamTitan Plus

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NOLA is a call center solution designed to help businesses connect with customers through outbound or inbound calls in compliance with telephone consumer protection act (TCPA) regulations. It enables sales and marketing teams to i...Read more about NOLA

4.8 (4 reviews)


Designed to help recruiters, marketing agents, startup owners, content marketers, and more, Outreachbin is an email marketing platform. The solution provides businesses with tools to streamline email outreach and warm-up processes...Read more about Outreachbin

3.4 (7 reviews)

GFI MailEssentials

GFI MailEssentials is a cloud-based anti-spam solution that helps small to large enterprises manage spam emails and prevent potential malware threats. It comes with an admin console, which enables users to synchronize critical dat...Read more about GFI MailEssentials


PhinPoint is an anti-spam solution that helps businesses in banking, health care, education, energy, government, insurance, legal and retail industries manage and prevent phishing attacks in emails. The intelligence platform allow...Read more about PhinPoint

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SPAMfighter Exchange Module

SPAMfighter is an on-premise solution that assists small to medium sized businesses with identifying and preventing spam, phishing, malware and email fraud. Key features include language filtering, statistics, account protection a...Read more about SPAMfighter Exchange Module


MailWasher is an on-premise and cloud-based anti-spam solution, which helps small to large organizations view, filter and remove unwanted or suspicious emails from employee accounts. Key features include content inspection, real-t...Read more about MailWasher

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Barracuda Sentinel

Barracuda Sentinel is a cloud-based solution designed to help businesses protect email accounts from spear phishing, takeover and impersonation. Key features include automated data backup, fraud detection, intent tracking, activit...Read more about Barracuda Sentinel


modusCloud is a cloud-based email security solution that helps managed service providers (MSP), IT resellers and consultants protect business email accounts from spam, targeted phishing and more. Key features include context index...Read more about modusCloud

4.7 (3 reviews)


Mailinblack is a cloud-based and on-premise email security solution designed to help businesses monitor incoming emails and protect inboxes from spam or virus attack. It enables administrators to identify threats and use filters t...Read more about Mailinblack


EuropeanMX is a cloud-based security software suitable for businesses of all size. Key features include incoming and outgoing filtering as well as email archiving. The solution can detect cyber attack patterns and spam attempts t...Read more about EuropeanMX

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ESET Endpoint Security

ESET Endpoint Security software is a cloud-based and on-premises application for internet security and malware protection. It has a global user base that comprises businesses of every size. Cloud sandbox technology enables users t...Read more about ESET Endpoint Security

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Trend Micro Smart Protection Complete Suite

Trend Micro's Enterprise Security Suite(ESS) is a security management solution that offers in-solution or managed endpoint detection and response. Trend Micro's ESS offers endpoint security, internet gateway, mail server and file ...Read more about Trend Micro Smart Protection Complete Suite

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Defencebyte Antimalware is an on-premise security solution that offers tools to defend individual devices from malware attacks. Key features include detecting malicious items, system scan scheduling and network protection through ...Read more about Defencebyte

2.8 (5 reviews)

Buyers Guide

Last Updated: March 16, 2023

Do you often find suspicious emails in your inbox? These could be about anything from a Nigerian prince promising you money to an antivirus software available at half price. Not only do these emails clutter your inbox, they could also be potential security threats or malware and phishing attacks. As a business owner or the IT administrator for a business, it is your job to protect your employees as well as your business against such emails.

Doing that manually, however, is almost impossible! This is where anti-spam software can help you. The software will help you build up the security you need in your email ecosystem and to streamline your email flow.

To help you choose the right anti-spam software for your business, we've prepared this guide. Here we'll cover:

What is anti-spam software?

Anti-spam software is a tool that uses a set of protocols to determine unsolicited and unwanted emails and keep them from entering your inbox. Most such tools can be customized as per your requirements, allowing you to determine what kind of messages you deem spam-worthy.


Setting filter rules in SpamTitan

Common features of anti-spam software

Subject and content filters

Detect phrases that are commonly used in the subject lines and bodies of spam emails and block similar emails from reaching the inbox.

White lists and black lists

Manually decide whether or not you want to receive emails from a certain email address. Permitted addresses go to the white list and emails from these addresses land in your inbox; blocked addresses go to the black list and emails from them land in your spam folder.

Virus detection

Scan emails for viruses and malware and automatically quarantine malicious emails to the spam folder.

Quarantine and email recovery

Maintain quarantined emails for a period of 30 days. Quarantined emails can be manually recovered during this time, post which they are automatically deleted.

Some advanced anti-spam solutions also have features such as:

Grey listing

Some solutions also allow grey listing emails from sources that are unknown but don't seem malicious. Grey listing is a process where the email is returned to the server it was sent from, with a request to have the email sent again. Spam servers are often too busy to respond to such requests, which helps the feature filter out spam emails.

SURBL/URIBL filtering

Spam URI RBL (SURBL) and Real-time URI Black List (URIBL) filtering rejects quarantining or filtering emails with malicious URLs or links to websites classified as suspicious in previous spam emails. This helps prevent phishing attacks.

What type of buyer are you?

The anti-spam needs of a boutique consulting firm with a few dozen employees would be very different from those of a large auditing firm with a few thousand employees. Hence, before selecting a solution, it is important that businesses understand what type of buyer are they.

  • Small and midsize businesses: Such business have only one anti-spamming need—keep spam emails out of employees' inboxes to prevent security attacks and wastage of time. Typically, such businesses don't host their own servers but rent clouds from third-party providers. Hence, they should go for cloud-based anti-spam software that can easily integrate with their IT ecosystem.

  • Large businesses and enterprises: Such businesses typically need to manage a heavy flow of emails in addition to keeping spams out of employees' inboxes. Typically, these buyers have their own servers or private clouds. Hence, they should go for the on-premise deployment model for anti-spam software.

Benefits of anti-spam software

Anti-spam software helps you keep your inbox clear of spam and unnecessary emails. Its benefits are as follows:

  • Filter out spam from your inbox: The software not only filters emails from specific addresses but also based on promotional subject lines and text in the email body. This helps you declutter your inbox and ensure that only the emails you want to see or those similar to the emails you are interested in land in your inbox.

  • Maintain a quarantine folder: Automatically quarantine filtered out emails and retain them in a spam folder for up to 30 days. You can recover legitimate emails that filtered out unintentionally.

  • Feel no hassle over filter updates: Most anti-spam tools automatically update the filters for new types of malware threats and spam patterns. So you don't need to bother with setting the filters manually. However, you can always choose to add filters as well as email addresses to be quarantined.

Key considerations when purchasing anti-spam software

The right anti-spam software can not only keep your inbox clutter-free but also help you dodge security breaches and attacks. However, picking a tool for your business can be a confusing process. Here are a couple of points to keep in mind:

  • Don't over- or under-purchase: When selecting your software, make sure you know what the needs of your business are and explore options accordingly. If your business doesn't need advanced features such as grey listing or SURBL/URIBL filtering, then opt for a basic solution that doesn't have them. Similarly, if your business does need these advanced features, talk to the vendor to have them included.

  • Weigh deployment options thoroughly: Your existing email ecosystem will determine the deployment option you choose for the anti-spam software and how long the deployment takes. Usually, deploying the software on a cloud is less time- and investment-consuming than doing the same on a private server. When exploring solutions, be mindful of your existing email ecosystem and ask the vendor if there could be any possible issue with the integration or deployment of the tool.

Note: The applications selected in this article are examples to show a feature in context and are not intended as endorsements or recommendations. They have been obtained from sources believed to be reliable at the time of publication.