Junk Email Filter Alternatives (September 2025)

Be spam free today! Protect your domain from spam and viruses with SpamHero. Removes over 98% of the spam and viruses sent to your domain. Setup takes 5 minutes.

Email security and spam filtering with SpamTitan from TitanHQ uses double AV and AI driven malicious URL detection to block malicious threats

Spambarrier ist ein Dienst, der Ihre E-Mails filtert, bevor sie Ihren Mailserver erreichen. Der einfache Weg, sich vor Spam zu schützen Hosting sicher in Deutschland und datenschutzkonform.

SPAMfighter Exchange Module is the award winning Anti Spam and Virus for Exchange Server 2000 - 2016. Try FREE for 30 days.

Phishing protection including spam filtering, outbound SMTP with DKIM, backup MX services, and Advanced Threat Protection. With 24x7 support included.

A powerful email server that blocks 99% of junk emails. It also enables encrypted emailing with large sized file sharing and helps in preventing IP leakages

N-able SpamExperts offers professional anti-spam email filtering and archiving for Web hosting providers, Internet Service Providers and Telcos.

Protect your business e-mail from cyberattacks: phishing, ransomware, spam, viruses. Installation in just a few clicks. French solution 🇫🇷

MX Layer provides cutting-edge cloud-based solutions for email security, business continuity, data loss prevention, and email archiving services.

An essential suite of email and web security services for SMB and Enterprise.

VIPRE provides email security solutions for every size organization and the IT partners that serve them.

#1 Open Source Free Anti Spam and Antivirus software. MailCleaner is a gateway between your mail infrastructure and Internet. Block all spam.

Easy to Install and manage, carrier class Mail Server Software with modern fast WebMail interface, spam protection and much more.

Email Security, Archiving, Encryption, & Awareness Training. Compatible with Office 365. Virus, Phishing, Ransomware & Malware Protection.

BELxpress Email Hosting Solution

Safeguard your network’s most vulnerable system with anti-virus and anti-spam technologies that block malicious software and spam at the gateway.

Powerful, effective protection against spam and malware

N-able Mail Assure offers MSPs AI-driven email security with close to 100% filtering accuracy. Mail Assure also provides continuous uptime and email archiving.

Spambrella is your company for managed email security services and User Awareness Training solutions and products. Try our security services for email today!

Secure your business with total messaging control. Cybonet stops the majority of malicious email threats at your network's perimeter while simultaneously providing a range of additional options for comprehensive security and messaging control.

Secure your business with total messaging control. Cybonet stops the majority of malicious email threats at your network's perimeter while simultaneously providing a range of additional options for comprehensive security and messaging control.

Real-time link click protection defends against malicious links in emails every time, on every device, from anywhere.

Bulk email verifier. Get rid of spam traps, bounces,and disposable emails. Start with 100 FREE email validations! Secure & accurate bulk email validation

Windows mail server software with webmail, caldav, carddav, antivirus, spam filtering - Fast, secure email server software for windows. Download free mail server trial.

Stop bots and manual spam from reaching you or your customer. All with high accuracy and privacy.

Leading mail server and webmail client, XGenPlus offering fast, secure, and reliable emailing services supporting linguistic domains - World's first enterprise email solution.

Say goodbye to spam with Akismet – the ultimate spam protection used by millions of websites. Sign up today and never worry about spam again!

Symantec Messaging Gateway protects email against spam, malware, targeted attacks and provides advanced content filtering, data loss prevention, and email encryption.

Discover top-tier cyber security solutions from Eunetic GmbH, including SSL certificates, email filters, Anycast DNS, and LEI services.

Host your professional email on a secure, privacy-guaranteed, and ad-free email hosting service built-in with features like email marketing services can do.

Keep your email list clean with our bulk email verification service. Verify daily 100 email address for free and avoid sending emails to spam / invalid account.

Fast, secure, and sustainable email services provided by email professionals. Powerful Email and Domain Hosting for businesses and organizations.

The most accurate email validator algorithm to identify and remove bad email addresses. Best sales starts with a better email deliverability. Enjoy a free trial.

SPAMfighter is a global provider of state-of-the-art computer, mobile and server utility and security products to millions of users from 235 countries.

Set up email forwarding in seconds and start receiving and sending emails with your domain name. Absolutely free. No registration. 24/7 Support.

SMTP email relay service that is powerful, secured and reliable. Send better transactional emails and integrate easily with our email API.

The most accurate bulk email checker. Complete email address verification in seconds. Clear lists with online mail checker for free.

Stop paying inflated fees to clean your email lists. Use MailCleanup and clean your emails at less than half the price.

Encrypt ANY Business or Personal Email in a few minutes. No need to switch email providers. Free encrypted email for Gmail, Yahoo, Microsoft.

Mailprotector has the complete email security products your users need to cover all three comprehensive pillars: email security, encryption, and privacy.

Experience the power of Listclean: the simple, AI-driven email verification service with unparalleled accuracy. 100 verifications free. Start trial today!

Email Monster acts as a firewall for your email address. You never have to reveal your real email anymore, by masking your email with unlimited temporary forwarding addresses. Also, it helps fight inbox clutter with delayed future emails and sender blocking, even without unsubscribe links.

SMTP2GO is the scalable, reliable email deliverability solution. Worldwide servers, a robust API, and powerful reporting set us apart. Try our free plan!

Cost-effective, secure hosted email: mailboxes, calendar and address book

Verify your email list in minutes, or integrate real-time email verification into your app with our API. Over 18 billion emails verified. Get started for free.

Secure, private email hosting service for business or family with mobile sync apps for calendar, contacts, tasks, and notes. Get your private email account.

DNS filtering and DNS web filtering solution providing AI driven threat protection and advanced web content controls for MSPs.

MagicMail is the top selling, carrier-grade email server built for ISPs, Telcos, and Cable companies to manage your back-end services for email.

A suite of email marketing tools to monitor Inbox placement, Deliverability, IP health and Sender Reputation, compatible with all Email Service Providers.

Barracuda Essentials for email security provides IT service providers with complete email security, archiving, e-discovery and backup solution.

Buy SMTP service. 99% Inbox. Free to test. Best price/quality SMTP offer. Buy with Bitcoin. Send, receive, route/forward emails.

MailboxValidator email validation clean email lists and reduces bounce. It connects to the mail server and checks whether the mailbox exists or not.

Take back control of your email with this easy-to-deploy mail server in a box.

Try DNSFilter's industry-leading protective DNS, content filtering and website blocking solutions; a trusted security service for 35,000+ businesses.

Email security is critical for all organizations. Block all email attacks using Mimecast's advanced email security product with targeted threat protection.

Securely archive, search, and analyze your company's email on one platform, preserving vital data while gaining instant business insights.

Send your Transactional and marketing Emails safely, track your results and use powerful APIs designed for devolopers by developers. Try for free

The only deliverability tool you need. Find out why your email is going to spam and protect your sender reputation

Get the best email validation tool for busy businesses. Fully automated, completely hands-off, this email verification tool does it all for you.

Boost your email security with Proofpoint Essentials and OnDMARC; protect your business against phishing, ransomware, and fraud.

Exceptional Email Security, Email Archiving and Phishing Awareness. Libraesva stops Zero-Day Email Attacks, integrating with M365 and Google

Explore AuthMailer transactional email service! Discover its features, pros, and cons to send transactional emails.

Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.

Test new user signups, transactional emails, spam scores, and more. Get started on our free forever plan with unlimited email addresses and mailboxes.

MailChannels ensures your customers' emails are always delivered. Trusted by the fastest-growing hosting providers.

Protect your enterprise with best in breed email security from Sendio. Eliminate ransomware, phishing attacks, spam and malware using behavioral technology.

Ad-free Business Email Hosting with a clean, easy-to-use interface. Integrated Business Calendar, Contacts, Notes, Tasks. Free for up to 5 users.

Send bulk, transactional, & marketing emails with our easy-to-use and reliable SMTP. Check the quality of email and improve delivery. Get started for free!

Cleanfox is the fastest Email Cleaner for Gmail, Outlook, and More. Clean your inbox efficiently and stop spam emails.

Optimize your email strategy with ZeroBounce. We offer top-tier email validation, list cleaning, and address verification to reduce spam traps and enhance deliverability.

Save on infrastructure and maintenance costs. Choose your data centre (US, EU, APAC). AWS native cloud email hosting.

Protect your business network from viruses and threats, secure your work email and Windows file server with AVG business antivirus endpoint security. Download a Free Trial or Buy Online.

Accurate real-time email validation service: upload and clean your list or integrate email verification into your app with our API. Get started for FREE!

Free real-time email verification service. Easy to use. Start using in 30 seconds

Bouncify is a Leading provider of bulk email list cleaning and email verification service. Run our bulk email verification tool through your list of emails to remove hard bounces and keep your mailing list clean and engaged with 99% accuracy. We provide email list validation to marketers from all countries.

Security in the industry for mobile operators, internet service providers, and hosting providers Cloudmark Authority utilizes a unique combination of proprietary…

Reduce bounce rates, stop fake sign-ups and combat fraud with award-winning email verification solutions. Real-time API or batch file options available.

The Most Comprehensive Email Verification Service from only $59: Email Checker, Email List Verify, Bulk Email Verifier, ESP Integrations, and Automatic Email Verification

ScoutDNS is a cloud based DNS filtering solution for content filtering and internet protection that is both powerful and easy to use.

Mailfence is the only secure and private email service that gives you control. A free, interoperable encrypted email service protected by Belgian privacy law.

Email Address Validation and Email List Cleaning Service reduces bounce rates. Quick Email Verification Service is the right platform to verify email list and improve deliverability.

Email Encryption is an essential part of Secure Cloud. With Zix, we send encrypted email automagically in the background. No extra steps are required, ever.

Improve domain reputation and increase the quality of your mailing list by validating emails before sending a campaign, or at the point of capture.

Email checker online tool. Ensure email accuracy with our efficient tool. Verify email addresses instantly and improve your communication reliability. Try for free!

SMX offers a cloud-based email security solution for SEG, archiving and added Microsoft 365 defence. Trusted by enterprises, governments and ISPs across ANZ.

Enhance VIPRE Email Security Cloud with unparalleled protection against malicious links and infected attachments.

Secure your business emails. Train your employees to cyber attacks. Protect your emails with Mailinblack.

Exchange business-class email helps increase user productivity while protecting your data. Get it as a hosted service or run it on your servers.

Sylpheed - Sylpheed はシンプル、軽量かつ高機能で使いやすい、無料のメールソフトです。Sylpheed は Windows から Linux まで様々なプラットフォームに対応しています。

If you want excellent email deliverability, our services are highly dependable. Reach out to us for bounce checker and hunter email.

SpamKill - Captcha-free protection against spambots

Use our Mail Tester to test email. Get 3 Free Spam Tests to check your Email Deliverability and spam score with our free email spam checker.

Forget searching through junk, spam, and unsolicited emails to find what you actually need. Bulletproof turns your open-access inbox into a permission-based one.

Mimecast Cloud Archive is a highly secure and scalable solution that cuts the cost and complexity of managing email archives. Learn more.

INKY helps companies secure email using a cloud-based security platform that proactively and instantly scans inbound, internal, and outbound emails to eliminate phishing and malware. The platform intelligently eliminates security threats by blocking malicious emails while assisting employees in real time to handle suspicious emails.

Over 90% of targeted ransomware attacks start with a spear phishing attack. But with a single appliance, you can detect and block targeted attacks.

This reliable and secure transactional email service by Zoho Mail ensures guaranteed and fast delivery of transactional emails, and comes with a pay-as-you-go pricing plan.

Redtail Email - provides financial professionals with a convenient and compliant way to retain, retrieve, and report on email correspondence.

Partner with Australia's #1 wholesale domain name and web hosting provider today. Begin selling cPanel web hosting services to your customers from our fully managed and secure Dell Cloud infrastructure based in Australia.