Best Cloud Email Security Solutions - Page 5

How Many Cloud Email Security Solutions Products Does G2 Track?

Total Products under this Category: 102

Category Stats (Sep 2026)

  • Average Rating: 4.51/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Barracuda Email Protection (+1.34%) - Among all products in this category, Barracuda Email Protection recorded the largest rating increase compared to last month

Last updated: September 26, 2026

How Does G2 Rank Cloud Email Security Solutions Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 7,500+ Authentic Reviews
  • 102+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Cloud Email Security Solutions

G2 Grid® for Cloud Email Security Solutions plotting products by satisfaction and market presence

Highlighted products: Barracuda Email Protection, Acronis Cyber Protect Cloud, Proofpoint Core Email Protection, Check Point Email Security, Paubox, Valimail, Abnormal AI, and Mimecast Advanced Email Security.

Underlying data: [Grid® JSON](https://www.g2.com/categories/cloud-email-security/grids.json?focus%5B%5D=barracuda-barracuda-email-protection&focus%5B%5D=acronis-cyber-protect-cloud&focus%5B%5D=proofpoint-core-email-protection&focus%5B%5D=check-point-email-security&focus%5B%5D=paubox&focus%5B%5D=valimail&focus%5B%5D=abnormal-ai&focus%5B%5D=mimecast-advanced-email-security&segment=all)

Trend Vision One - Email and Collaboration Security

Consolidate visibility, analysis, and controls across security layers and workflows

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate Trend Vision One - Email and Collaboration Security?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.3/10)
  • Advanced Threat Protection (ATP): 10.0/10 (Category avg: 9.0/10)
  • Anti-Phishing: 10.0/10 (Category avg: 9.2/10)
  • Quarantine: 10.0/10 (Category avg: 9.0/10)

Who Is the Company Behind Trend Vision One - Email and Collaboration Security?

  • Seller: TrendAI
  • Year Founded: 1988
  • HQ Location: Tokyo
  • LinkedIn® Page: www.linkedin.com
    7,996 employees on LinkedIn®
  • Ownership: OTCMKTS:TMICY
  • Total Revenue (USD mm): $1,515

Who Uses This Product?

  • Company Size: 50% Large, 50% Medium

What Do G2 Reviewers Say About Trend Vision One - Email and Collaboration Security?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the easy setup of Trend Vision One, making implementation seamless with various email service vendors.
  • Users value the solid platform for securing email and IT services, appreciating its ease of implementation and comprehensive protection.
  • Users appreciate the implementation ease of Trend Vision One, benefiting from its API Connector for seamless integration.
  • Users appreciate the strong malware protection provided by Trend Vision One, ensuring the security of their email and IT services.
  • Users value the robust protection Trend Vision One offers for email and IT services, ensuring secure communication.
Cons
  • Users find the complex implementation challenging, requiring workarounds for integration with Crowdstrike XDR/EDR.
  • Users find the integration issues with Crowdstrike XDR/EDR challenging, requiring complicated workarounds for functionality.

What Are Recent G2 Reviews of Trend Vision One - Email and Collaboration Security?

Cloudmark Security Platform for Email

Cloudmark Security Platform is a security solution that automatically detects and mitigates all categories of email abuse and threats across a service providers network.

Average Rating: 3.5/5.0

Total Reviews: 1

How Do G2 Users Rate Cloudmark Security Platform for Email?

  • Advanced Threat Protection (ATP): 5.0/10 (Category avg: 9.0/10)
  • Anti-Phishing: 6.7/10 (Category avg: 9.2/10)
  • Quarantine: 5.0/10 (Category avg: 9.0/10)

Who Is the Company Behind Cloudmark Security Platform for Email?

  • Seller: Cloudmark
  • Year Founded: 2002
  • HQ Location: Sunnyvale, California, United States
  • Twitter: @Cloudmark
    1,349 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    5,261 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

DeliverySlip

DeliverySlip enables email encryption & file security with your email in the Cloud. DeliverySlip works with your existing cloud email and data loss prevention (DLP) for secure delivery. We offer a free and easy cloud migration program from your legacy secure email gateways and on premise email encryption.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate DeliverySlip?

  • Quarantine: 6.7/10 (Category avg: 9.0/10)

Who Is the Company Behind DeliverySlip?

Who Uses This Product?

  • Company Size: 100% Medium, 100% Small

What Are Recent G2 Reviews of DeliverySlip?

What Are G2 Users Discussing About DeliverySlip?

modusCloud Email Security

modusCloud is a cloud based email security solution designed to protect against spam, phishing, advanced targeted attacks, malicious attachments, data loss and drive by URLs.

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind modusCloud Email Security?

  • Seller: Vircom
  • Year Founded: 1994
  • HQ Location: Kirkland, CA
  • Twitter: @Vircom_Inc
    599 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    44 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of modusCloud Email Security?

What Are G2 Users Discussing About modusCloud Email Security?

PhishTitan

PhishTitan is a next-generation phishing protection and remediation solution powered by TitanHQ. Our proprietary machine-learning algorithm integrates directly with Microsoft 365, catching and remediating sophisticated phishing attacks Microsoft misses. Our curated and unique email threat intelligence data is unmatched in visibility, coverage, and accuracy. Request a demo today to see PhishTitan in action.

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind PhishTitan?

  • Seller: CyberSentriq
  • Year Founded: 2025
  • HQ Location: Galway ,Galway
  • Twitter: @Redstor
    1,949 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    206 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of PhishTitan?

Qboxmail

Qboxmail is a European email hosting provider based in Italy, known for developing all its Control Panels and applications entirely in-house, giving us a unique edge in customization and performance. Our service is fully white-label, empowering Partner Resellers (MSPs, Telcos, ISPs, and Hosting Providers) to seamlessly enhance their offerings with robust, professional email solutions. Over 35,000 companies across more than 40 countries trust Qboxmail, thanks to our high IP reputation for excellent deliverability and strong security systems safeguarding mailboxes from threats. We provide dedicated support and intuitive software, helping resellers set up and manage their customers’ mailboxes with minimal effort. By saving time and resources, Partners can focus on other revenue-generating activities and grow more effectively.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Qboxmail?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.3/10)

Who Is the Company Behind Qboxmail?

  • Seller: Qboxmail
  • Year Founded: 2016
  • HQ Location: Prato, IT
  • LinkedIn® Page: www.linkedin.com
    15 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Qboxmail?

AI-generated summary from verified user reviews

Pros
  • Users praise the responsive customer support of Qboxmail, finding assistance helpful and timely for their needs.
  • Users value the data protection offered by Qboxmail, ensuring their email security and peace of mind.
  • Users find Qboxmail easy to navigate, praising its user-friendly interface that simplifies email management.
  • Users value the strong malware protection provided by Qboxmail, ensuring their data remains secure and safe.
  • Users value the top-notch security of Qboxmail, feeling confident their data is well-protected.

What Are Recent G2 Reviews of Qboxmail?

So Email Security

SO Email Security API scans inbound and outbound email in real time, detecting phishing, spoofing, and malicious attachments before they reach users. Built for accounting firms, fintechs, and compliance teams that need audit-ready email security without managing infrastructure.



Average Rating: 3.5/5.0

Total Reviews: 1

How Do G2 Users Rate So Email Security?

  • Anti-Phishing: 10.0/10 (Category avg: 9.2/10)

Who Is the Company Behind So Email Security?

Who Uses This Product?

  • Company Size: 100% Small

AegisAI Security

AegisAI is an API-based email security platform purpose-built for Microsoft 365 and Google Workspace. The platform utilizes autonomous AI agents to evaluate inbound mail across identity signals, sender behavior, and language intent. This multi-layered analysis enables the detection of highly sophisticated threats that often bypass traditional security gateways, specifically AI-powered spearphishing, compromised vendor accounts, and complex business email compromise (BEC). Rather than relying on static signatures, AegisAI analyzes user intent in every interaction. By understanding the unique communication patterns between specific senders and recipients, the platform identifies the subtle anomalies—such as shifts in urgency, tone, or phrasing—that signal a hijacked conversation or an impersonation attempt. Deployment is lightweight and non-disruptive, connecting directly via mail APIs without requiring MX record changes or altering mail flow. Beyond advanced social engineering, AegisAI provides comprehensive, native protection against phishing, malicious attachments, and zero-day malware. Its self-learning model also functions as an intelligent filter to neutralize persistent spam and promotional noise, ensuring a clean and secure inbox for both general users and high-target executives. This specialized filtering reduces the "alert fatigue" that often distracts SOC teams from high-priority security events. AegisAI leverages agentic investigation to secure every layer of the inbox, providing a robust defense against Account Takeover (ATO) attempts and Data Loss Prevention (DLP) risks. Unlike traditional tools that rely on basic reputation checks, AegisAI provides security teams with advanced AI forensics and actionable intelligence. Every detection—from a suspicious file to a subtle impersonation attempt—is supported by a clear evidence trail. This allows SOC teams to resolve the specific "blind spots" found in modern social engineering while maintaining total visibility into the evolving trust dynamics of their organization. By deploying a self-configuring control plane, AegisAI automates the remediation process, ensuring that once a threat is identified, it is neutralized across the entire enterprise instantly.

Who Is the Company Behind AegisAI Security?

aiSecurity Email360

Seceon aiSecurity Email360 is a standalone AI-driven email security platform that gives security teams unified visibility into email activity, threats, targeted users, and overall email security posture. It deploys independently, connecting directly to your email environment with optional integration into existing security workflows. Email remains one of the largest enterprise attack surfaces, where a single phishing message or compromised account can escalate into a full incident - yet email threats often sit scattered across multiple disconnected tools. Email360 consolidates that into one workflow: it collects email telemetry across messages, users, mailboxes, and threats; applies AI-driven analytics to detect phishing, business email compromise, malicious links, and suspicious activity; correlates events to surface attack patterns, targeted users, and where risk is concentrated; and lets teams investigate incidents and quarantine threats from a centralized console. Built for SOC teams needing faster invest

Who Is the Company Behind aiSecurity Email360?

  • Seller: Seceon
  • Year Founded: 2015
  • HQ Location: Westford, Massachusetts, United States
  • Twitter: @Seceon_Inc
    1,209 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    177 employees on LinkedIn®

Blue Lantern Security

Blue Lantern Security is continuous cybersecurity monitoring for small and mid-sized businesses and the MSPs that serve them. It watches the three places attacks actually land: email, browsers, and devices. Connect Google Workspace or Microsoft 365 once and Blue Lantern checks every inbound message for spoofing, lookalike domains, malicious links, and dangerous attachments, with optional automatic quarantine. The same integration verifies MFA coverage and dormant accounts daily, flags external auto-forwarding and suspicious inbox rules, checks SPF, DKIM, and DMARC on your sending domains, and shows which AI and third-party apps hold access to your mail and files. Lightweight macOS and Windows agents check disk encryption, EDR health, firewall, updates, and backups every hour. A Chrome extension detonates visited pages in a sandbox to catch credential-harvesting forms, malicious redirects, and fake verification screens before a user is tricked. Every finding shows what was checked, what was found, and why it matters, with no arbitrary risk scores. That transparency doubles as proof of coverage for cyber insurance applications and customer security questionnaires. Pricing is a flat $15 per user per month with no contracts, minimums, or overage. A free tier includes 30 on-demand email, URL, and file scans a day with no credit card. MSPs manage every client from one console with per-client accounts and resellable pricing.

Who Is the Company Behind Blue Lantern Security?

Cloud Protect

Easiest to use email and account security for your small business. Never get hacked again with real-time breach detection, email spam filtering and hands-on managed security from a tier 1 Microsoft Partner. Real-time breach detection is monitored by our security experts. Get recommendations every month on how to improve your security with included support from our security experts. Automatically have spam moved to your Junk folder and emails scanned for viruses by adding the Spam Filter add-on.

Who Is the Company Behind Cloud Protect?

  • Seller: RyanTech
  • Year Founded: 1999
  • HQ Location: Modesto, US
  • LinkedIn® Page: www.linkedin.com
    22 employees on LinkedIn®

Corp-eMail

Corp-eMail is a comprehensive email security solution designed to protect organizations from spam, phishing, and virus-laden emails. Leveraging advanced technologies such as RBL blacklists, SPF enforcement, DKIM validation, Bayesian algorithms, and email fingerprint filtering, Corp-eMail effectively intercepts over 99% of unwanted emails in real-time. Its cloud-based SaaS model ensures seamless integration with existing email systems, providing robust protection without the need for additional hardware or software installations. Key Features and Functionality: - Advanced Spam and Virus Filtering: Utilizes cutting-edge algorithms and continuously updated databases to detect and block spam, phishing attempts, and malware. - Cloud-Based Deployment: Offers a SaaS solution that integrates effortlessly with various email platforms, eliminating the need for on-premises hardware or software. - Intelligent Inbound Acceleration: Employs distributed architecture and optimized international connections to expedite the reception of overseas emails, reducing delays and preventing loss. - DDoS Attack Prevention: Safeguards email servers against DDoS attacks and brute-force attempts, ensuring server stability and security. - Email Continuity Assurance: Provides backup servers to store incoming emails during outages, ensuring no messages are lost during server downtime. Primary Value and User Solutions: Corp-eMail addresses critical challenges faced by organizations, including the inundation of spam and malicious emails, delays in receiving international correspondence, and the risk of email server downtime. By implementing Corp-eMail, businesses can enhance their email security posture, improve communication efficiency, and ensure the reliability of their email infrastructure. This solution empowers IT administrators with greater control and peace of mind, allowing them to focus on core business operations without the constant concern of email-related threats.

Who Is the Company Behind Corp-eMail?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 3, 2024