Best Email Spam Filter Services 2021

Here at Clean Email, our priority is providing you with the best possible email management software to keep your inbox free of spam and other unwanted communications. We’ve tried some of the most well-known email spam filter services and can point you in the right direction.

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The Most Effective Spam Filtering Services

At a time when our inboxes are more inundated with unnecessary content than ever, it’s no surprise that seemingly countless businesses have released spam filtering solutions to help manage that clutter. That said, no two email spam filtering services are created equal, and we’re here to help you make an informed decision.

1. SolarWinds Mail Assure

Price: from $1/mailbox/month with volume discounts available

SolarWinds Mail Assure is a cloud-based email security solution that offers a unique value proposition for many MSPs and IT Pros working in SMBs. The product has flexible pricing options and offers over 99.9% spam filtering accuracy, business continuity, and email archiving.

Mail Assure stands apart by being built on technology that is developed in-house. Whereas some other email security providers resell technology, SolarWinds has full control over their tech stack and are able to respond quickly to new email-borne threats. On top of spam filtering, business continuity and email archiving features, Mail Assure also offer seamless integration with Microsoft Office 365 and Outlook via an add-in and single sign-on.

SolarWinds Mail Assure email spam filter service
👍🏼   Pros:
  • Over 99.9% spam filtering accuracy
  • Flexible pricing options
  • Seamless integration with Microsoft Office 365 and Outlook
👎🏼   Cons:
  • No mobile admin portal

2. Spam Bully

Price: $29.95 annually

Available for Windows email clients including Outlook, Live Mail, Outlook Express, Windows Mail and IMAP, Spam Bully is a relatively affordable personal option at just $29.95 for a yearly subscription. It includes a robust suite of features that make it easy to keep your inbox clean and reduce the time you spent managing emails you aren’t interested in.

Spam Bully is very easy to install and intuitive to use, making it an accessible option for nearly any user. One of its key features is its ability to learn what each user considers spam and adapt its settings based on your needs. The program will monitor your behavior over the first few weeks of use in order to determine how to filter spam in the future.

Spam Bully email spam filter service
👍🏼   Pros:
  • Can recognize even sophisticated spam messages
👎🏼   Cons:
  • Windows-only
  • Doesn’t work on mobile devices

3. SpamSieve

Price: one-time purchase of $30

SpamSieve offers one of the most powerful and well-known spam filtering services for Mac and is compatible with operating systems as far back as 10.7, with older versions of the software available for machines at 10.2 or newer. Although there isn’t a SpamSieve iOS app, the desktop version can keep spam out of your mobile inbox.

For users who are skeptical of committing to a program without having tested it, SpamSieve offers a 30-day trial, during which users have access to the entire set of features. After the trial period, the application’s full version is available for $30—in contrast to Spam Bully’s annual subscription model, SpamSieve is a one-time purchase.

In addition to its adaptive learning capabilities which, like Spam Bully, allow it to change its behavior over time, SpamSieve also offers integration with a variety of clients including Apple’s Mail app and Microsoft Outlook, plus the macOS Contacts app to ensure that messages from trusted contacts aren’t accidentally marked as spam.

SpamSieve email spam filter tool for 2021
👍🏼   Pros:
  • Premium version available as a one-time purchase
  • Great for Apple Mail users
👎🏼   Cons:
  • Runs only on Mac computers
  • Doesn’t work well on Catalina

4. Clean Email

Price: from $29.99 annually / per 1 account

One of the main advantages of Clean Email over the earlier email spam filters on this list is its availability. While Spam Bully and SpamSieve can only be accessed on Windows and Mac respectively, Clean Email is available through your web browser in addition to dedicated applications for both iOS and Android.

Clean Email spam filter service in 2021Clean Email spam filter service in 2021

Clean Email is designed to streamline the process of tidying up your inbox and getting rid of spam. Although its free features would still make it one of the best email spam filter services, users can also pay for access to a more extensive and powerful set of premium features.

With a free account, users can manage up to 1,000 emails, which Clean Email will automatically group based on its analysis of each message. Upgrading to a premium account (from $29.99 annually) allows for unlimited email management and a wider range of features, including managing email subscriptions and setting up rules for the automatic analysis of future messages.

Auto Clean feature in Clean EmailAuto Clean feature in Clean Email

Some people may go their whole life without having their identity stolen, while others may have it happen multiple times in a month. It’s really just luck of the draw whether or not your personal information gets hacked or stolen. That’s why Privacy Guard by Clean Email is such an important feature.

With Privacy Guard, you can ensure that your data remains private, secured, and anonymous. Privacy Guard will check if your email address was found in the known data breaches and security incidents. If your account was compromised in any data breaches, you will be suggested to take immediate actions such as changing your password or enabling multi-factor authentication.

Privacy Guard feature in Clean EmailPrivacy Guard feature in Clean Email

Your personal information is extremely important, but you don’t have to spend all day protecting it on your own. Clean Email’s Privacy Guard is a state-of-the-art service that will help you go about your day without the fear of having your identity stolen.

👍🏼   Pros:
  • Easy to use
  • Suitable for home and business users alike
  • Comprehensive email management features
👎🏼   Cons:
  • Not ideal for large-scale enterprise deployments

5. Securence

Price: starts at $1.50 per user

Securence is a popular spam filtering service intended primarily for small businesses, educational and governmental bodies, and enterprises. Interested parties can set up a 30-day free trial on their website, at which time they will receive a custom quote based on the size of their business and scope of their needs.

One of the important features of Securence for modern companies is its business continuity service, which ensures that your organization will maintain access to email even in the event of an unexpected loss of service. Avoiding downtime is more crucial than ever in such a connected time, and Securence makes that a top priority.

Securence best email spam filter in 2021
👍🏼   Pros:
  • Effective spam filtering
  • Exceeds GLB and HIPAA security standards
👎🏼   Cons:
  • Intended primarily for small businesses and enterprises
  • Confusing admin panel
  • A lot of false detections

6. SpamTitan

Price: starts at $0.81 per user

SpamTitan pledges to stop 99.9% of spam before it reaches your inbox, drastically reducing the time spent on the tedious task of managing your email accounts. Like Securence, SpamTitan provides a 30 day free trial to potential clients, including free technical support, after which interested users can seamlessly access their existing settings and information in the premium version.

Installing and setting up SpamTitan is a simple and easy process, and it instantly increases your protection from viruses and malware in addition to common email spam. SpamTitan includes two different antivirus protection mechanisms to ensure that nothing even potentially compromising ever reaches your inbox.

SpamTitan best email spam filter service in 2021
👍🏼   Pros:
  • Easy to set up
  • Affordable monthly billing
👎🏼   Cons:
  • Enterprise-oriented email spam filter
  • Not ideal for MSP

7. MailWasher

Price: $30 for an annual license or $75 for lifetime use

MailWasher claims a user base of over 8 million people, and it’s easy to see why so many have been drawn to its features and accessibility. The free version of MailWasher is surprisingly powerful on its own, and the program is even more effective for premium users. That said, it’s important to note that free users can only access mobile features for the first ten days.

In contrast to many of the other applications described above, MailWasher can be used indefinitely without paying anything at all. Both versions are compatible with a long list of email clients, such as Gmail, Hotmail, Outlook and Outlook Express, Thunderbird, Yahoo, Windows Live Mail, and more.

While many users are content with the features available as part of the free version of MailWasher, there are substantial benefits to upgrading, currently $30 for an annual license or $75 for lifetime use. In addition to all free features, premium users can use MailWasher with multiple addresses and receive technical support in addition to other capabilities.

Our time is more valuable than ever, and cleaning up your email inbox can help you spend more of that time on what’s really important to you and your business. These spam filtering services are among the industry leaders and can play a key role in streamlining your inbox.

MailWasher best email spam filter tool in 2021
👍🏼   Pros:
  • Free version available
  • Works with all popular email services
👎🏼   Cons:
  • Confusing user interface
  • Loaded with advertising

8. Comodo Dome Antispam

Price: starts at $4.00 per user

Designed for enterprise users, Comodo Dome Antispam is an email spam filtering service that can handle large volumes of unwanted email messages. It relies on Comodo’s patented containment technology, which allows users to open attachments in isolated containers, where they are analyzed to determine whether or not they’re safe. Only when an attachment is considered to be safe is it allowed to leave the container.

Comodo Dome Antispam is available in the cloud, dedicated hosted cloud, and on-premises. All versions of this spam filtering solution offer many extra features, including full malware filtering, email classification, banner and plugin filtering, DoS attack prevention, and IPv6 support.

Comodo best email spam filter software in 2021
👍🏼   Pros:
  • Proven enterprise email spam filter
  • Comodo AV and Valkyrie integrations
  • Free trial available
👎🏼   Cons:
  • Available only to enterprise users

9. SPAMfighter

Price: starts at $29.99

SPAMfighter is a capable spam filtering solution for Outlook, Outlook Express, Thunderbird, Windows Mail, and Windows Live Mail users. It runs only on Windows XP, Windows Vista, Windows 7, and Windows 10. This spam filtering solution has been translated into most major languages, including English, Chinese, Russian, and German.

Like a guard, SPAMfighter checks all new emails that arrive in your inbox and tests them to determine if they are legitimate. When SPAMfighter finds an email that's not legitimate, it automatically removes it from your inbox and moves it to the spam folder. Should a spam email message slip through, you can simply mark it as spam with a single click, which automatically removes it from all other community members.

SPAMfighter email spam filtering software
👍🏼   Pros:
  • Simple user interface
  • Partnership with Microsoft
👎🏼   Cons:
  • Works only on Windows
  • Compatible only with desktop email clients

10. ZEROSPAM

Price: $0.75 per month per user

Providing comprehensive protection against all forms of spam email messages, including ransomware and phishing, ZEROSPAM is a popular cloud-based email spam filtering service that can work hand-in-hand with Office 365, a subscription-based version of Microsoft Word, PowerPoint, Excel, Outlook, OneNote, and other members of the Microsoft Office product line.

ZEROSPAM has been improving its email spam filter for many years now, successfully achieving a very low false-positive rate. The effectiveness of the spam filter has been proven by multiple independent tests, earning it the VBSpam+ award on six different occasions so far.

Even though ZEROSPAM advertises its services to both enterprise customers and individual users, it's clear that enterprises represent a bulk of its user base. Pricing starts at $0.75 per month per user, and direct customers are billed annually. There's a 30-day free trial that lets you try the service for free, which is a great way how to decide if ZEROSPAM is the right email spam filter service for you.

ZEROSPAM email spam filter software for 2021
👍🏼   Pros:
  • Very low false-positive rate
  • Works hand-in-hand with Office 365
  • Free trial available
👎🏼   Cons:
  • Targets enterprise customers
  • Pricing available only after registration

11. MX Guarddog

Price: $0.25 per email address per month

MX Guarddog is a cloud-based email spam filter that serves as the first line of defense against spam, computer viruses, malware, phishing emails, spoofed undeliverable notices, and Denial of Service attacks (DoS). When MX Guarddog detects a suspicious email, it moves it to quarantine and, at the same time, sends you a notification so you can decide what to do with it.

MX Guarddog uses TLS-based encryption and Perfect Forward Security (PFS) to keep your emails secure, and it also offers 99.95% SLA, which means that it shouldn’t be unavailable for more than a little over 4 hours per year, making it very dependable.

You can try MX Guarddog for free for 30 days to see how it works. After the free trial period ends, MX Guarddog charges $0.025 per email address per month. So, if you want to use this spam filtering service with 100 email addresses, your monthly cost will be $100.

MX Guarddog best email spam filter software for 2021
👍🏼   Pros:
  • Affordable pricing
  • Free trial available
  • Great reputation
👎🏼   Cons:
  • Strongly geared toward enterprise users
  • Not user-friendly

Best Email Spam Filter Services - FAQs

How do I create a spam filter for my email?

To create a spam filter in Gmail, navigate to the Settings Gear on the top right. From there, click on “Filters and Blocked Addresses,” then click “Create a New Filter.” Navigate to the “From” section, and type in the address of the sender that you want to keep out of your spam folder. Finally, click “Create Filter,” and you’ll be able to see emails from that sender as you would from a normal email address.

How do I bypass spam email filters?

If you are using Gmail and want to bypass spam email filters, first you must click on the Settings gear. Then, navigate to “Advanced Settings.” Go to “Spam,” then click “Add Another.” From there, check the “Bypass spam filters” box for any addresses that you want to show up in your regular inbox.

What is the best email spam filter?

There are many spam filters available, but only a few of them actually live up to expectations. Clean Email is one of the best email filtering services on the market thanks to its wide range of features and accessibility. Clean Email can be accessed through a web browser on Mac, iOS, or Android device, so you can customize your spam options at any time of day from any place.

How do I setup spam filters on my iPhone?

If you want to block an address on your iPhone, you must first open the Mail application. Find a message from one of the senders who you want to block. Swipe left on the message. Tap the option for “More.” A pop-up menu will appear. Tap on the “Mark” option, then tap “Move to Junk.” You can also select multiple messages and use the technique to block a variety of senders. This will send all messages from these addresses to your spam or junk folder.

Clean Email Team Updated on Nov 30, 2021
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