Hornet.Email Alternatives (September 2025)

Powerful, effective protection against spam and malware

Full suite for Microsoft 365 security, Risk, Governance, Compliance & Backup

GreatHorn is an API, cloud-native email security solution that mitigates the risk of business email compromise across Microsoft 365 and Google Workspace.

OX Cloud Email - Easy, Fast, Secure - Powerful email built for business

Secure hosted email with custom domain. Shared calendars, chat, storage, documents & apps. The only solution integrated and working together in one screen.

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

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

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

Cloud Email Protection, the integrated cloud email security solution from Fortra, stops advanced threats that bypass security defenses and make it into inboxes.

Secure Windows or Linux mail server that includes chat, calendaring and contacts and offers a cost-effective alternative to Microsoft Exchange.

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.

Mesh is the world's first email security platform built exclusively for MSPs, enhancing their efficiency and ensuring greater safety for their customers. Offering flexible deployment options - Mesh Gateway (MX based), Mesh 365 (API based), and Mesh Unified (MX and API based) - Mesh protects organiza

Zimbra: A Cloud-Hosted Collaboration Software and Email Platform That Integrates With Proprietary Business Solutions

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

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

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

Email hosting and collaboration tools for business with free migration and 24/7 support

Award-winning cloud-based email security platform prevents phishing, malware, spoofing, and BEC, from reaching a user’s mailbox. See the Trustifi Difference.

Emails, calendars, contacts, tasks, chat and more

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.

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

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

Material is a multi-layered detection and response toolkit for email. It stops sophisticated email-based attacks and contains the blast radius of compromised accounts.

Guardian Digital has developed unparalleled AI-powered business cloud email security services. Secure your business emails and stay threat-ready today.

The MDaemon Email Server is trusted by businesses in over 140 countries to provide a secure, reliable, and affordable alternative to Microsoft Exchange or Microsoft 365. IT professionals recommend MDaemon as an easy-to-use, reliable, and secure mail server that does not require expensive administration or impose high per-user costs. On-premise or hosted email deployment.

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

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

Sign in to your Outlook.com, Hotmail.com, MSN.com or Live.com account. Download the free desktop and mobile app to connect all your email accounts, including Gmail, Yahoo, and iCloud, in one place.

Fortinet's Email Security Solutions provides protection for your critical business information. Learn how to send Secure Email Gateways (SEG) with FortiMail.

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

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.

IRONSCALES’ cloud email security software is an AI-powered email platform for enterprise organizations. Our self-learning service protects against advanced email attacks that bypass traditional defenses.

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

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

Intelligent Email Security protects against data breaches by engaging and empowering users without introducing friction.

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

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.

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

Secure email encryption helps protect individuals, SMBs, and Enterprise organizations. Learn more about compliance & secure email encryption.

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

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

The Beeble Project is email and online cloud storage platform with unprecedented security and privacy without third party access.

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

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

Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.

Advanced email protection to prevent credential phishing, business email compromise, account takeover, and more.

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

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

The award-winning Clearswift Secure Email Gateway offers an unprecedented level of email security, including cyberattack protection and data loss prevention.

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

MailGuard is a leading Australian technological innovator, providing complete enterprise-grade protection against email security threats such as phishing, ransomware, and BEC. First to stop fast breaking attacks, MailGuard detects and prevents email threats 2-48 hours ahead of the market.

Reliable, secure, extensible, and customizable mail server software platform made for on-prem and cloud-native deployment; easily scalable, smart licensing.

Get advanced threat protection with Microsoft Defender for Office 365 and protect against cyber threats like business email compromise and phishing.

Amazon WorkMail provides secure, managed business email and calendaring with support for existing desktop and mobile email client applications.

Stop advanced email threats and optimize security operations with AI-powered email security that adapts to your organization. Available for on-premise and Microsoft 365.

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

Hushmail - Encrypted Email & Secure Web Forms. Our healthcare plans come configured for HIPAA compliance right out of the box.

We are the Experts in Email Archiving: Innovative Email Archiving Solutions for small and medium-sized Businesses.

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

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

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

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

Graphus is automated email security software, providing security for Google Workspace & Microsoft 365 users against phishing & social engineering attacks.

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.

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

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

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

A powerful, reliable and easy-to-use backup and replication solution for Microsoft Hyper-V and VMware virtual machines (VMs).

Elastic Email is a marketing platform, built on the most cost-effective delivery engine. Join tens of thousands of companies, which already send their emails!

BELxpress Email Hosting Solution

Kaspersky Security for Microsoft Office 365 protects your cloud-oriented enterprise from email-borne threats. Learn how it uses advanced next generation techniques to stop phishing, ransomware, malicious attachments, spam and business email compromise (BEC).

Yandex 360 is a digital space that makes it easy to schedule and save important events and share memories. Register to get started — it's free. You can choose a Yandex 360 Premium plan to use even more features.

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.

Complete protection against phishing, malware or spam, adding an extra layer of cyber defense for your Microsoft 365, Google Workspace cloud apps and email.

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

Microsoft Exchange Email from Intermedia offers enterprise email services backed by 24/7 support and a 99.999% uptime.

Email Delivery Platform to test, send and control email infrastructure in one place. Great for dev teams. Start today - Sign Up free!

CloudFiler, secure and easy email filing for all devices running Microsoft Outlook

Secure E-Mail Boolebox: to send and receive encrypted messages and attachments using the advanced security features of Boolebox. Learn more!

Discover Alinto, email solutions for organisations and service providers. ensure the deliverability, management and the security of your emails.

Your smart DMARC reporting and monitoring platform. Ensure domain-level security and email deliverability with EasyDMARC’s DMARC, SPF, DKIM, and BIMI services.

SonicWall Cloud App Security offers next-gen security for your users and data within cloud applications, including email, messaging, file sharing and file storage. For organizations adopting SaaS applications, SonicWall Cloud App Security delivers best-in-class security and a seamless user experience.

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

With Darktrace's self-learning cyber security AI, you're protected against future email attacks that aren’t limited to past attack rules & data. Get a demo.

Home

Unlock the full potential of Microsoft's robust technology stack. From cloud solutions (Dynamics 365, Microsoft 365) to mobile and web development, we specialize in harnessing the power of Microsoft platforms for seamless, innovative solutions. Elevate your business with our cutting-edge expertise.

WithSecure™ (formerly F-Secure) Elements Collaboration Protection adds comprehensive protection beyond your Microsoft 365 security features. Learn more here.

Securely collaborate on documents in cloud-based portals. Enhance client relationships by centralizing people, documents, and actions.

We’re powering the next generation of secure email communications for your organization, preventing data leaks & empowering people to work securely.

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

Advanced threat and data protection for Microsoft Office 365, Google Workspace, and other cloud app security services.

RainLoop Webmail - Simple, modern & fast web-based email client.

Augmentt's multi-tenant platform gives MSPs visibility into SaaS apps and M365 environments so you can easily audit, protect and detect security threats for all end users.

CloudCodes CASB Solutions that protects Business Cloud Data with one access on any device at any place. Secure Office 365, G Suite, Dropbox, Zoho, Salesforce, Zendesk, Freshdesk, etc Cloud apps. CloudCodes is a trustworthy name in CASB vendors with its multiple services. Access Control, DLP, SSO, Identity Management, Shadow IT.

How it works: Avanan adds an invisible layer of full-suite security for cloud email/collaboration, like Office 365, to create universal threat management.

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

Zoho Workplace is a productivity and collaboration suite trusted by millions. It brings mail, chat, files, office suite, meetings, and more into one place.

Secure Backup for Microsoft 365 trusted by 15k+ customers. Never face Microsoft 365 data loss again with unlimited AWS backup & smart recovery.

Protect your business data with Dropsuite's secure cloud backup and archiving solutions for Microsoft 365, Google Workspace, Quickbooks Online, website, and email.