Best Email Spam Blockers to Stop Unwanted Emails in 2024

Here is a list of the top Spam Filtering Services with features. Pick the best Email Spam Blockers to effectively block unwanted spam emails and get more storage for important emails:

Spam emails are unsolicited and unwanted junk emails mainly sent for commercial purposes that occupy inbox storage, hide legitimate emails, and are more than an annoyance.

To overcome this issue you can look for a good email spam blocker that easily identifies and blocks unwanted and malicious emails with measures like spam filters, anti-virus scanners, phishing prevention, and content analysis engines.

Top Email Spam Filtering Service Solutions

Benefits of Anti-Spam Filters

There are many benefits of email spam blockers. Some of them are:

1. Email Continuity: An email spam blocker provides the facility of email continuity which means you can send it and receive emails even when your email server goes offline.
2. Blocking Spam: It identifies and blocks spam emails that could bring vulnerable malicious threats and malware into the system.
3. Protection Against Viruses: Spam emails not only occupy the mail storage but also carry dangerous viruses. So the email spam blocker identifies the suspicious links and attachments and blocks them firsthand.
4. Maintains Corporate Reputation: It helps maintain the company’s reputation by blocking viruses, safeguarding customer’s data, and preventing spam mail forward.
5. Customized Filters: It allows you to customize the filter options as per your preferences. You can add keywords, expressions, etc that can be included in the spam messages.

Need of Email Spam Blockers

There is a great need for email spam protectors for corporations and general users. According to the research by Statista, in 2021 the total of 45% of the total emails were unsolicited spam.

The email spam blockers have the potential to identify viruses, phishing attacks, or malware coming with the spam emails. They block them by identifying them with measures like content analysis, attachments, known or unknown email addresses, domain reputation, blacklists, etc.

What is an email spam filter? How do spam filters work?

The email spam filter is a powerful software that helps block unnecessary clutter of spam emails, making your inbox free from spam emails and with lots of storage for legitimate ones. It does not allow any virus or malware to come out from the infected emails to your system by thoroughly analyzing each email and its links and attachments.

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Spam filters work simply by identifying and blocking spam emails before they reach the inbox. It identifies whether it is spam or legitimate with measures like content analysis, attachments, known or unknown email addresses, domain reputation, blacklists, etc.

Any suspicious links or documents are also analyzed and clubbed into the blacklist if found otherwise.

Types of Email Spam Protectors

There are many types of email spam filters. Some of them are:

1. Bayesian Filter: This type of filter uses AI and complex calculations to label emails under spam or legitimate ones.
2. Rule-based Filters: Under this type of filter you can set certain criteria or specific terms or expressions inside an email’s body that the filter can identify and mark likewise.
3. Cloud-based Email Spam Filters: These are those email spam filters that secure a company’s digital borders by not allowing any suspicious emails to come to and go out of the system. There are many cloud-based email spam filters. Some of them are Symantec Email Security Cloud, N-Able Mail Assure, and more.
4. Content Filter: These filters analyze the content of the messages to decide whether to mark it as spam or legitimate. It simply identifies unsurprising regular content like discounts, deals, offers, etc.
5. Language Filter: Under these filters, the messages in languages other than that of the receiver are grouped under spam as most of the spammers target people from different countries.

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What to look for in an email spam filter?

There are some essential factors that you should consider to select the best-fit email spam filter for your organization. It includes:

1. Support: Look for software that offers good customer support and is available 24/7.
2. Easy-to-use Interface: The software should have an easy-to-use interface that users could easily incorporate with less technical knowledge.
3. Pricing: There are many free spam blockers that you can use to block unnecessary emails, but if you need more supported functionalities, you need to subscribe to their plans. So you need to look for one with reasonable pricing within your budget.
4. Customization: Many spam filters allow you to customize the settings as per your preferences. So you must consider the one that will provide you with a customization feature.
5. Disable Option: There must be a disabled option that enables you to turn the spam filter off in case you need it in situations to avoid missing important mail.

Who is this Article for?

Those who are fed up with unnecessary cluttered emails and corporations that do not want their emails to get spammed into the inboxes of their clients should read this article.

In this article, I have covered everything related to spam email blockers, starting with their meaning, benefits, needs, and types, working to a list of the best email spam blockers with a brief comparison of the top 5 among them.

The article also mentions some FAQs with market trends and expert advice. Every tool is reviewed thoroughly and the whole review process is described.

List of the Best Email Spam Blockers

Consider this list of some remarkable spam protectors:

1. N-Able Mail Assure
2. SpamTitan
3. MailChannels
4. MailWasher
5. SpamBully
6. Hornetsecurity
7. Xeams
8. SpamSieve
9. Spambrella
10. TopSec Email Security
11. Securence
12. Symantec Email Security.Cloud
13. Comodo Secure Email Gateway

Comparing Some Top Anti Spam Software

Detailed reviews:

#1) N-Able Mail Assure

Best for protecting against malware, phishing, impersonation, human error, and more.

N-Able Mail Assure is one of the best anti-spam software. It provides real-time email protection and secures it from malware, phishing, impersonation, human error, and more with the help of learning and threat intelligence.

It offers a bundle of amazing features including a secure private portal for sensitive emails, cloud-based email security, 24/7 built-in email continuity and Microsoft 365 integration with sync wizard, robust encrypted archiving, collective threat intelligence engine, machine learning, and more.

Features:

• Provides real-time protection with the help of machine learning and threat intelligence.
• Helps to secure emails through the full support of SPF/DKIM/DMARC.
• A private portal is provided to protect business-sensitive emails and to give them extra protection.
• Monitors the messages and blocks phishing attacks if found.
• Filtering technologies and machine learning power our advanced Email protection feature.
• Recognizes new threat patterns in real-time with the help of AI and responds to them accordingly.

Why do we recommend N-Able Mail Assure:

N-Able Mail Assure has been selected among the top Email Spam blockers due to its capabilities of using collective threat intelligence, real-time threat pattern recognition, flexible reporting options, 100% filtering accuracy, and more. It provides intuitive, easy onboarding and multi-tenant management and provides an extensive API for custom integrations.

Pros:

• Full SPF/DKIM/DMARC support is provided
• Unlimited storage
• Integration with Microsoft 365
• Highest VBSpam+ rating
• 24/7 built-in email continuity
• Encrypted archiving

Cons:

• Some users report difficulty in setting up reports.

Our Review: N-Able Mail Assure is the best free email spam filter, recommended for providing a secure private portal for sensitive emails, cloud-based email security, 24/7 built-in email continuity, and Microsoft 365 integration with sync wizard, robust encrypted archiving, collective threat intelligence engine and machine learning.

It has been voted the number 1 RNN platform by CRN readers in 2021, 2022, and 2023.

Pricing:

• A free trial is available.
• Contact for pricing.

#2) SpamTitan

Best for blocking 99.9% of spam, phishing attacks, and other threats.

SpamTitan is a leading email security solution that offers various amazing & advanced solutions to protect emails from phishing attacks, spam, malware, and ransomware. The solutions offered by it include a gateway anti-spam appliance, cloud email security solution, managed service providers, SpamTitan for Office 365, SpamTitan Plus, EncryptTitan, and SafeTitan Training.

It includes a plethora of amazing features including AI Phishing protection, managed service providers, zero-day attacks, email content filtering, customizable policies, outbound scanning, and so on.

Features:

• Provides AI-backed phishing protection along with zero-day threat protection.
• Offers an option of data leak protection to prevent internal data loss and dedicated 6 RBLs (Real Time Blacklists).
• Allows you to block specific attachments under its infected attachments feature.
• Quarantine reports are provided to the end users containing extensive and detailed reports on their accounts.
• With the help of outbound scanning, you can prevent your IP from being blacklisted.
• Sandboxing enables you to protect your emails from advanced email attacks.
• Other features include customizable policies, proven spam blockers, 2x anti-virus protection, zero-day attacks, and many more.

Why do we recommend SpamTitan:

We recommend SpamTitan as it is an easy-to-manage software that can be set up easily and can be deployed and used conveniently. It is a multi-award winner with a 5-star rating given by over 600 users along with getting over 35 consecutive Virus Bulletin Spam awards. It provides exceptional customer support with a 98% satisfied customer rate in 2023.

Pros:

• Outbound scanning
• Extensive and detailed reports
• Blocking of specified attachments
• DLP for internal data leak protection
• Easy integration with Microsoft 365

Cons:

• No keyword filter for cloud users.
• Some users report gateway appliance solutions as unstable.

Our Review: SpamTitan is an easy-to-use proven anti-spam filter that has a market-leading spam catch rate of 99.9% and can be deployed and used very easily. It prevents you from email phishing and provides you with various amazing features like email content filtering, allow & block, 2x anti-virus protection, sandboxing, and so on.

Pricing:

• A 14-day trial is available.
• For pricing details, you need to request a quote.

#3) MailChannels

Best for outbound spam attack prevention.

MailChannels is an email delivery software that enables you to reliably send emails and prevents you from compromised accounts. Its main aim is to get rid of the world of spam with its amazing features like false positive remediation, high-volume infrastructure, reduced support tickets, behavior analysis, email log search and analysis, and so on.

It is one of the most famous and popularly used by web hosts as it maximizes email delivery & its security, and lowers customer support costs.

Features:

• Ensures secure and reliable delivery of emails with high-volume infrastructure, and reduced support tickets.
• Provides high-tech spam and phishing detection technology with zero maintenance requirement.
• False positive remediation with 24/7 customer support is provided.
• Detects hacked hosting accounts by analyzing email-sender behavior and message content in real-time to stop spam
• Prioritize email delivery of legitimate accounts based on their sender behavior.
• Observe web hosting emails with email log search and analysis to diagnose email delivery problems, and view sender profiles.
• Ensures data safety by compliance with industry regulations like GDPR, SOC2 certification, and privacy-first infrastructure.

Why do we recommend MailChannels:

We recommend MailChannels due to its amazing capabilities in preventing outbound spam attacks along with ensuring secure and smooth email delivery. For this, it saves your servers from getting blacklisted by enabling you to switch your hosting services and detecting the compromised accounts to investigate and take further action.

Pros:

• Easy setup
• Zero maintenance
• World-class technology is used
• Increases email delivery
• 24/7 email support
• Automatic shutting down of abusive accounts

Cons:

• Not enough customization options.

Our Review: MailChannels is best for its all-in-one anti-spam services that include everything from preventing blocklisting to detecting hacked hosting accounts to final delivery with transparent costing without any hidden charges. It has been trusted by many popular hosting providers including DreamHost, Dreamscape, Kinsta, Turbify, and many more.

Pricing:

• A 30-day money-back guarantee is available.
• Pricing plans are as:
  • Starter: $79.99 per month
  • Standard: $449.99 per month
  • Professional: $999.99 per month
  • High Volume: Contact for pricing

#4) MailWasher

Best for spam, scams, and other junk before it gets into your computer.

MailWasher is the leader in spam filter software that does not allow spammers or scammers to get into your computer via emails. It works simply by allowing you to preview the emails on the server and enabling you to delete the unnecessary ones right from there before it get into the computer.

It offers various effective anti-spam tools like Friendslist, Blacklist, RBL, etc along with several amazing features like recycle bin, a full preview pane, a customizable interface, in-built wizards, and many more.

Features:

• An easy-to-use platform that requires simple steps like 1,2,3. You need to check mail, mark for deletion/learning, and then ‘Wash’ mail.
• Enables you to preview and delete the emails you want on the server itself before it gets into the computer.
• Offers various effective anti-spam tools like Friendslist, Blacklist, RBL, etc.
• Provides various amazing features like a recycle bin, full preview pane, customizable interface, in-built wizards, and many more.
• Provides a quick and easy setup by offering its in-build wizard and also allows you to customize the look and feel of the interface as per your taste.
• A recycle bin feature is provided to let you resave your important mail that gets deleted.

Why do we recommend MailWasher:

MailWasher has been selected for its amazing and effective anti-spam tools like Friendslist, Blacklist, RBL, etc along with several amazing features like recycle bin, full preview pane, customizable interface, in-built wizards, and many more. It enables you to delete unwanted messages on the server itself before it gets into your computer.

Pros:

• Deletes spam automatically
• Intuitive and customizable interface
• Real-time spam filtering
• Anti-spam tools are provided
• 24/7 technical support with a pro plan

Cons:

• Stops working in between
• Confusing user interface

Our Review: MailWasher is a great choice for those users who want an easy-to-use platform to safeguard themselves from spam emails as it requires simple steps to get rid of unnecessary mail. It has been trusted by over 8 million users and has been recognized by CNN & BBC also. Although it is a great choice, it crashes and stops working in between, which is its downside.

Pricing: Pricing plans are as:

• MailWasher Free: $0
• MailWasher Pro: Starting from $49.95

#5) SpamBully

Best for using artificial intelligence and server blacklists to identify spam emails.

SpamBully is the best email spam filter for Outlook which is packed with a set of amazing features like email details, blacklists, auto-delete, fraudulent link detection, mobile phone forwarding, and much more.

It shows its users the details of each email including the sender’s IP address, country, character set, and the reason for blocking or not blocking the particular mail, and also the way to correct the action in the future if required.

Features:

• Uses artificial intelligence and server blacklists to identify spam emails.
• Automatically selects the right emails and blocks the unnecessary ones.
• Reports the spammers automatically to their servers and FTC.
• Automatically checks the real-time blackhole lists containing spammers and filters them from the inbox.
• It shows you proper statistics with comprehensive graphing on how the software is working.
• Other features include fraudulent link detection, forwarding only good emails to mobile phones, email details, and more.

Why do we recommend SpamBully:

We recommended SpamBully as the best spam email blocker as it has been reported as an exceptional software by its users. It is best in using artificial intelligence and server blacklists to identify spam emails and allow or block the emails as per their need. It provides proper statistics with comprehensive graphing on how the software is working.

Pros:

• Real-time blackhole list monitoring
• Fraudulent link detection
• Use of artificial intelligence
• Shows full details of the email

Cons:

• Bugs reported
• Improvement in customer support is suggested

Our Review: SpamBully is the best free spam filter for Outlook that comes with a free trial and a reasonable subscription plan. It is recommended for its features like fraudulent link detection, statistics, blacklists, mobile phone forwarding, and more.

It has been trusted by over 50,000 customers and has been recognized by many popular publications including BBC, The Wall Street Journal, NBC, PCWorld, Wired, and more.

Pricing:

• A free trial is available
• Costs $29.95 per year
• Payment options- Credit card and PayPal

#6) Hornetsecurity

Best for cloud-based email security and anti-spam solutions.

Hornetsecurity formerly known as Zerosoam is a cloud-based email filtering solution that uses advanced technology and machine learning to detect potential threats like malware, phishing, etc, and prevents various viruses from entering the system.

It automatically detects and blocks email messages from certain senders after detecting harmful links. It offers an amazing set of features like reporting & statistics, fraud detection, email achieving, quarantine, and much more.

Features:

• Detects and prevents the email and system from potential threats and viruses, including malware, phishing, trojan, spyware, and more.
• Based on advanced technology and machine learning, block the infected mail before it gets into the destination mailbox.
• Automatically blocks or quarantines email messages from certain senders after detecting harmful links.
• Ensures users’ data security through LDAP and SSO capabilities.
• Enables you to configure the filtering parameters and user access.
• Generates statistical reports on what emails have been blocked, rejected, or quarantined.

Why do we recommend Hornetsecurity:

Hornetsecurity has been recommended for email cloud security, compliance, and backup for Microsoft 365. It provides seamless integration with Microsoft 365 with amazing features like spam and malware protection, email encryption, email achieving, signature & disclaimer, and many more.

Pros:

• Detects potential threats against emails.
• Based on advanced technology and machine learning.
• Secures the system against viruses.
• Ensures data security through LDAP and SSO.
• Eliminates up to 99.98% of junk mail.
• AI-powered filtering technology.

Cons:

• Comparatively expensive.
• Introducing an export feature within the LOG section is suggested.

Our Review: Hornetsecurity is a cloud-based simple-to-use software best for its amazing set of features like reporting & statistics, fraud detection, email achieving, quarantine, and more. It has been trusted by over 50,000 companies including many popular ones, including Amazon, BMW, Rolls Royce, and many more.

It provides good customer support via 24/7 live representatives, phone, email, help desk, knowledge base, and training (documentation, live online, webinars, and videos).

Pricing: Contact for pricing.

#7) Xeams

Best for effectively monitoring attachments and encrypting emails to prevent IP leakage and 99.99% junk messages.

Xeams is a product of Synametrics technologies which has been trusted by a million users in over 50 countries worldwide. Xeams is a complete email server with powerful anti-spam and junk filtering that blocks 99.9% of junk messages.

It enables its users to securely send large attachments along with email encryption and also prevents IP leakage. It offers a set of amazing features, including Built-in POP3 and IMAP Servers, Microsoft Office 365 integration, Live monitoring, Extensive reporting, Message archiving, and many more.

Features:

• Effectively monitors attachments and encrypts emails to prevent IP leakage and 99.99% of junk messages.
• Enables you to view the documents in the emails without opening them to prevent viruses and other potential threats.
• Automatically blocks viruses residing in Work or Excel files.
• Automatically archive inbound as well as outbound messages and enable you to find them within seconds.
• Other features include Built-in POP3 and IMAP Servers, Microsoft Office 365 integration, Live monitoring, Extensive reporting, Message archiving, and more.
• Provides 100% data security with compliance with industry regulations like HIPAA, GLBA, CFPB, FERPA, and more.

Why do we recommend Xeams:

Xeams has been selected due to its amazing capabilities in creating an ironclad email infrastructure that prevents 99.99% of junk messages from entering into the system and providing 100% data security with compliance with industry regulations like HIPAA, GLBA, CFPB, FERPA, and more. It can be used as an email firewall and other solutions to process email are no longer required.

Pros:

• 99% spam protection
• Built-in POP3 and IMAP Servers
• Microsoft Office 365 integration
• Live monitoring
• Extensive reporting
• Message archiving
• Regulatory compliant
• Customizable filtering rules

Cons:

• You need to manually correct the emails that someone incorrectly identified as spam.

Our Review: Xeams is recommended for its features like Built-in POP3 and IMAP Servers, live monitoring, extensive reporting, and more. It offers the highest quality customer support with its dedicated support staff via phone, email, chat, knowledge base & forums and also offers very flexible licensing options to be considered.

Pricing:

• A 30-day free trial is available.
• Pricing plans are as:
  • Community: Free
  • Enterprise: Starts with $1.9167 per user per month for 1-9 users tier.

#8) SpamSieve

Best for powerful spam filtering services with high accuracy and no false positives.

SpamSieve is one of the best email spam protectors for iPhone that helps in adding powerful spam filtering into the system.

It offers a customizable blocklist/allowlist to let you add your sophisticated rules or keywords or certain criteria and provides proper statistics on filtered mail, rules, SpamSieve accuracy, and more. It offers amazing features like customizable blocklist or allowlist, color show, statistics, track of accuracy, and much more.

Features:

• Shows you how spammy the mail could be with a color show to let you easily focus on the borderline ones.
• Maintains blocklists as well as allows lists to automatically take action accordingly.
• Automatically decodes the encoded messages sent by the senders and takes action accordingly.
• Look into the attached documents to find out if there is any potential threat.
• Provides proper statistics on filtered mail, rules, SpamSieve accuracy, and more.
• You can turn off the email notifications and you will be notified only when you receive legitimate messages.
• Ensures data privacy by saving mail data on your Mac.

Why do we recommend SpamSieve:

SpamSieve has been selected among the best spam blockers due to its extensive and powerful spam filtering capabilities. It is recommended for its color show feature that shows how spammy the message is with the help of color highlighters so that you can focus more on the borderline ones.

Pros:

• Bayesian spam filtering
• High accuracy with no false positives
• Does not charge extra for additional devices
• Integrates with phone contacts
• Ensures data privacy

Cons:

• Pricing is not disclosed.

Our Review: SpamSieve is the best email spam filter for Gmail and iPhone that offers a bundle of extensive features including customizable blocklist or allowlist, color show, statistics, track of accuracy, and much more. It can be integrated with the phone contact list and allows all messages or emails coming from them.

Pricing:

• Contact for pricing.
• A 39-day free trial is available.
• According to some reviews, it costs $30 for a single-user license or $48 for a family.

#9) Spambrella

Best for proofpoint real-time email threat protection.

Spambrella is an advanced email security service provider for Exchange, Microsoft 365, and Google Workspace. It protects the emails from various potential threats like ransomware, malware, phishing, etc. It does so by accurately classifying bulk emails, dynamically identifying the imposter ones, and blocking suspicious URLs and attachments.

It offers a plethora of amazing services including outbound email filtering, security awareness training, email continuity service, anti-impersonation protection, and more.

Features:

• Uses big data analysis to classify bulk emails into suspicious, spam, or unspam.
• Enable you to filter email attachments on the cloud itself without them being opened.
• Provides angi-phishing threat protection by scanning all URLs against the world’s largest threat database.
• The geoblocking feature enables you to allow or block emails from certain locations based on IP.
• Includes targeted attack protection through real-time checks, static code analysis, and dynamic malware analysis.
• Ensures regulatory compliance and global regulatory standards, including PCI, DSS, FRCP, HIPAA, PIPEDA, and more.

Why do we recommend Spambrella:

Spambrella is among the Best email spam blockers for Gmail or GSuite, Microsoft 365, and Exchange. It has been selected among the blockers for providing advanced email security services including real-time email threat protection, outbound email filtering, email encryption, DLP, phishing simulations, email archiving discovery, and more.

Pros:

• Real-time email threat protection
• Customized content filtering
• Advanced BEC detection
• Email spooling
• Imposter email protection
• Email warning tags
• Predictive URL defense

Cons:

• Restrictive filtration options.
• Does not show the details of blocked emails in metrics.

Our Review: Spambrella is the best email spam filter for Gmail that has been trusted by thousands of customers worldwide including many popular brands like Asics, Tegra, Carillon, The Christian Unions, Mobile, and many more. It is best for protecting email from threats in real-time and providing features like custom filtering, email spooling, email warning tags, and much more.

Pricing:

• A 30-day free trial is available.
• Contact for pricing.

#10) TopSec Email Security

Best for unmatched managed concierge services.

TopSec Email Security is a cloud-based email security solution that has been in the market for two decades. It serves various industries including government, healthcare, engineering, IT, and more.

It offers a bundle of amazing services including breach detect, DMARC protection, managed phishing awareness training, attachment sandboxing, email archiving, VIP impersonation protection, and many more.

Features:

• Provides fully managed concierge service for all email security requirements.
• Scans and analyzes millions of emails daily with the help of AI & machine learning to protect organizations from various potential threats.
• Offers a high level of customer support via 24/7 live representative, phone, email, knowledge base, and training.
• Includes services like breach detection, DMARC protection, managed phishing awareness training, attachment sandboxing, email archiving, VIP impersonation protection, and many more.
• Suitable for SMEs, Large-scale companies, and industries like government, healthcare, engineering, IT, and more.
• Safeguards against wrong websites with the help of a URL scanner.

Why do we recommend TopSec Email Security:

TopSec Email Security has been selected among the top 10 list of best email spam blockers as it provides good customer service with market-leading technical support that resolves 89% of issues on first contact along with providing a wide range of superior security services that makes it different from its competitors. It provides cloud scalability and affordable services across diverse industries.

Pros:

• Top-tier managed security services
• Unmatched customer support
• VIP impersonation protection
• Managed phishing awareness training
• URL scanner
• AI & machine learning driven

Cons:

• Users reported plenty of spam emails in their inboxes.
• Pricing is not disclosed.

Our Review: TopSec Email Security is recommended for delivering superior email security services that are cloud-based, affordable, and serve across diverse industries. It includes services like breach detection, DMARC protection, managed phishing awareness training, attachment sandboxing, email archiving, VIP impersonation protection, and many more.

Pricing:

• A free trial is available.
• Contact for pricing.

#11) Securence

Best for signature-based spam detection.

Securence is one of the leading global email filtering and management software, established in the year 2001. It offers a wide range of anti-spam and security products including inbound/outbound filtering, URL shield, email archiving, email shadowing, and so on.

It offers a unique solution that detects and blocks potential threats like viruses, worms, malicious content, attachments, and junk mail even before coming into the system.

Features:

• 24/7 email activity monitoring and email filtering technology are provided.
• Deployment easily and immediately without the need for migration, upfront fees, or any integration.
• Zero-minute detection methods are used to accurately detect malware campaigns.
• Good customer support is provided via phone, FAQs, and documentation.
• Suitable for every size of business including small-scale businesses, mid-size businesses, enterprises, government, and freelance.
• Other features include cipher mail, email continuity, hosted exchange, and more.

Why do we recommend Securence:

Securence has been selected among the top email blockers due to its unique spam-blocking solution that detects and blocks potential threats even before entering into the system. It uses its signature-based techniques to monitor and analyze emails to detect and block spam and viruses with the lowest possible number of false positives.

Pros:

• N+1 high availability hosting facilities.
• Custom content filtering.
• Lowest pricing in the market.
• Best admin interface.
• Secure hosting environment.

Cons:

• Improvements in integration options are suggested.

Our Review: Securence is a web-based solution trusted by many popular organizations including Mesaba Airlines, ShopNBC, TCF Banks, RE/MAX International, and many more. It is suitable for all sizes of businesses from small-scale businesses to large enterprises. It is recommended for email continuity that enables you to survive outages with its disaster mail spooling technology.

Pricing:

• A free trial is available.
• Pricing starts at $1.50 per month.

#12) Symantec Email Security Cloud

Best for safeguarding on-premises email by blacklisting, quarantining, and threat remediation.

Symantec Email Security Cloud is the industry’s most complete solution to safeguard organizations from potential threats like spear phishing, credential theft, or ransomware attacks by using measures like blacklisting, quarantining, threat remediation, and more.

It provides advanced policy-based encryption controls to safeguard confidential emails with measures like push and pull-based encryption, granular control, customizable emails or web portals, and so on.

Features:

• Isolates suspicious email links and email attachments to prevent threats like ransomware attacks, spear phishing attacks, and more.
• Deployment can be done on-premises or on the cloud.
• The system provides multiple layers of protection, including spam filtering, advanced security analytics, threat isolation, and more.
• Eliminates business email compromise with measures like impersonation protection, sender authentication enforcement, etc.
• Provides the deepest visibility into the system with email analytics.
• Helps in hunting or identifying the threats, prioritizing the top risks, and quickly remediating them.

Why do we recommend Symantec Email Security Cloud:

Symantec Email Security Cloud includes everything and every measure to safeguard Microsoft Office 365, Google G Suite, and email, which is why it has been selected among the best email spam blockers. It includes measures like email threat isolation, advanced security email analytics, sender authentication enforcement, rapid response and remediation, and more.

Pros:

• Gather insights from global intelligence networks
• Advanced machine learning
• Cloud sandboxing is available
• Seamless integrations
• User behavior analytics is available

Cons:

• Slow scan processing is reported.

Our Review: Symantec Email Security Cloud has been recognized as a leader in email security by Forrester in 2019 and a top player in its secure email gateway by Radicati report in 2021. It is recommended for its most complete solution that includes everything from threat isolation to rapid response & remediation, security awareness, integration with DLP, and so on.

Pricing: Contact for pricing.

#13) Comodo Secure Email Gateway

Best for sophisticated filtering systems and containment solutions.

Comodo Secure Email Gateway is a simple and customization platform that helps in bulletproofing the inbox from potential threats and spam.

It identifies and blocks spam emails even before they enter the system with measures like anti-virus scanners, phishing prevention, content analysis engines, and more. It helps its users set customizable user-based profiles that differ from employee to employee to protect sensitive information.

Features:

• Keep spam emails from entering the system with measures like spam filters, antivirus scanners, and content analysis.
• Leverages zero trust architecture that ensures 100% email security.
• Centralized management is provided to easily deploy, and customize policies.
• Customizable user-based profiles enable you to set access options and permissions based on the user profile to safeguard your sensitive data.
• Spear-phishing protection is provided through real-time angi-phishing with the use of threat intelligence labs.
• Other features include secure DNS filtering, secure web gateway, managed detection & response, and more.

Why do we recommend Comodo Secure Email Gateway:

Comodo Secure Email Gateway has been selected due to its amazing capabilities in providing bulletproof email security and an uninterrupted user experience with its powerful features like zero trust architecture, spear phishing protection, customizable user-based profiles, content analysis, antivirus scanners, and much more.

Pros:

• Spear phishing protection
• Easy to set up interface
• 24/7 email support
• Customizable user-based profiles
• Centralized management

Cons:

• Some legitimate files get blocked as per the reviews.

Our Review: Comodo Secure Email Gateway is recommended for reducing spam, and managing policies and automation to boost user productivity, maximum visibility, and effective cloud delivery. It has been recognized under various reputed review websites including Gartner, SC Awards, AV-Test, Gartner Peer Insights, and Cybersecurity Excellence Awards.

Pricing:

• Contact for pricing.
• According to a user review, it costs $29.99/year.

How We Selected These Tools?

We have selected the best spam email blockers taking into consideration certain essential factors like- ease of use and deployment, guaranteed uptime, higher spam detection rate, low false-positive rate, cost-effectiveness, and compatibility.

Every tool we mentioned has a distinct set of features with different pricing plans.

Frequently Asked Questions

Conclusion

Through the research, we concluded how essential email spam blockers can be. It not only blocks spam emails but also provides various other amazing functionalities like customizable user-based profiles, centralized management, content analysis engines, antivirus scanners, and much more.

There are several anti-spam filters in the market, one better than the other but to find the best among them you need to evaluate your requirements.

If you need the best email blockers for Yahoo, the Best email spam blockers for Gmail, the Best email spam blockers for Android, the best spam filter for Outlook, or the best email spam filter for iPhone, we researched thoroughly and jotted above the best among them taking into consideration various essential factors.

For instance, if you need to have Microsoft 365 integration, then you can choose from N-Able Mail Assure, SpamTitan, and Hornetsecurity. If you need zero-trust architecture, then you can go with Comodo Secure Email Gateway and SpamTitan.

In this way, you can select from the above-listed tools to fulfill your requirements.

Also Read => Guide for Gmail Sign out on Different Platforms

Our Review Process:

• Time taken to research this article: We spent 27 hours researching and writing this article so you can get a useful summarised list of tools with a comparison of each for your quick review.
• Total Blockers researched online: 31
• Top Spam Protectors shortlisted for review: 13