--- title: "Sentry Email Defense Service Software Pricing, Alternatives & More 2026 | Capterra" description: "With the help of Capterra, learn about Sentry Email Defense Service Software - reviews, pricing plans, popular comparisons to other Archiving products and more." source_url: "https://www.capterra.com/p/157118/Sentry-Email-Defence-Service/" page_type: "product" language: "en" --- # Sentry Email Defense Service Software Review 2026: Features, Reviews, Integrations, Pros & Cons Last updated on September 16, 2026 Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Description](#description)[Use cases](#use-cases)[Alternatives](#alternatives)[FAQs](#faqs)[Features](#features)[Pricing](#pricing)[Support](#support)[Reviews](#reviews) Sentry Email Defense Service ## What is Sentry Email Defense Service? A cloud-based email filtering gateway protecting company from spam, virus, ransomware, DDoS and phishing links. ## What is Sentry Email Defense Service used for? [Anti-spam](https://www.capterra.com/anti-spam-software/)[Email Security](https://www.capterra.com/email-security-software/)[Secure Email Gateway](https://www.capterra.com/secure-email-gateway-software/) Top alternative Featured Overall rating Based on 1 user reviews Reviews sentiment Positive \- Neutral \- Negative \- Starting price $1 Flat Rate, Per Month Free trial available Free version not included Capterra Shortlist charts the highest-rated and most popular products... Our "Best of" badge program showcases products with the highest ratings... Our "Best of" badge program showcases products with the highest ratings... Do you work for Sentry Email Defense Service?[Manage this product listing](https://www.g2.com/products/sentry-email-defence-service/claim_requests/new?auto=true) ## Sentry Email Defense Service Overview Updated September 2026 AI summary Sentry Email Defense Service offers cloud-based email security for organizations of all sizes, combining email filtering, spam blocking, and threat protection to help reduce risks from malicious or unwanted messages. Features such as encryption, policy management, reporting, and spam quarantine support compliance and oversight, while whitelisting and blacklisting enable tailored control of incoming email traffic. ## Compare with a popular alternative Capterra selects software alternatives based on relevant features, verified user reviews and user interactions. Placement may be influenced by client status. ### Sentry Email Defense Service 5.0 (1) VS. [4.9 (12)](https://www.capterra.com/p/178083/CLEARNETWORK/#reviews) Starting Price $1 Flat Rate, Per Month Starting Price $1.5 Per Feature, Per Month Free Trial Free Version Pricing Options Free Trial Free Version Ease Of Use 4.0 (1) Ease Of Use 4.8 (20) Value For Money 4.0 (1) Value For Money 4.8 (19) Customer Service 5.0 (1) Customer Service 4.9 (17) ## Sentry Email Defense Service alternatives [4.9 (50)](https://www.capterra.com/p/206740/Libraesva-Email-Security/reviews/) Starting price $5.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 100% of reviewers rated it above 4 stars Highest Rated [Trustifi](https://www.capterra.com/p/218859/Trustifi/) [5.0 (20)](https://www.capterra.com/p/218859/Trustifi/#reviews) Starting price $6.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 100% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/218859/Trustifi/) [SpamTitan](https://www.capterra.com/p/168436/SpamTitan/) [4.6 (563)](https://www.capterra.com/p/168436/SpamTitan/reviews/) Starting price $1.26 Per User, Per Month Pricing Options Free Trial Free Version User Rating 93% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/168436/SpamTitan/) [SpamHero](https://www.capterra.com/p/168948/SpamHero/) [4.5 (15)](https://www.capterra.com/p/168948/SpamHero/reviews/) Starting price $7.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 100% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/168948/SpamHero/) ## FAQs about Sentry Email Defense Service Overview ### What company size and specific industries is Sentry Email Defense Service built for? Sentry Email Defense Service is designed for organizations ranging from SMEs to listed enterprises and government departments. It fits businesses and public-sector teams that need email defense across smaller operations, large companies, and government environments. Features and Usability ### What are the key features of Sentry Email Defense Service? Sentry Email Defense Service offers anti-malware, anti-spam, anti-virus, and filtering features for email threat protection. It also includes authentication, threat intelligence, encryption, and data loss prevention, plus archiving and retention, email monitoring, whitelisting and blacklisting, and reporting and analytics for policy and event tracking. Getting Started and Support ### What training and onboarding options does Sentry Email Defense Service offer? Sentry Email Defense Service provides live online training and documentation to help teams get started. Live online sessions support guided instruction and setup, while documentation offers written reference material for self-paced learning and feature review as needed. Getting Started and Support ### What customer support options does Sentry Email Defense Service offer? Sentry Email Defense Service provides Email/Help Desk, Phone Support, 24/7 Live Rep, and Chat. User feedback on support quality is not available here, so no claims can be made about response times, helpfulness, or common frustrations. ## Features AI summary Based on 1,078 Archiving reviews Capterra reviewers highlight these as the features buyers care about most when choosing email security software: - **Threat Response** (**49%** of reviewers rated this feature as critical) - **Email Attachment Protection** (**58%**) - **Threat Protection** (**51%**) Sentry Email Defense Service supports **Threat Protection**, helping teams detect and reduce harmful email-based threats before they affect users. However, it does not include **Threat Response** or **Email Attachment Protection**. Instead, it offers **Email Filtering** (**47%**) and **Spam Blocker** (**51%**), which can help reduce unwanted messages and screen incoming email traffic more effectively. Together, these features help businesses lower inbox risk, improve email hygiene, and give teams a clearer way to manage suspicious messages. Activity Tracking Track and document all activities across devices, networks, and other systems Anti-Malware Prevents emails with malicious links or attachments embedded with malware, such as ransomware, spyware, and other viruses, from reaching email recipients. Anti Spam Techniques to prevent and filter unwanted or unsolicited email spam from reaching a user's inbox Anti Virus Prevents, detects and removes malware Archiving Stores all previously submitted documents for use in audits or future submissions. Archiving & Retention Moving and separately storing data that is not actively used or continuous storage of data for compliance purposes Sentry Email Defense Service 28 features ### All Features - Activity Tracking: Track and document all activities across devices, networks, and other systems - Anti Spam: Techniques to prevent and filter unwanted or unsolicited email spam from reaching a user's inbox - Anti Virus: Prevents, detects and removes malware - Anti-Malware: Prevents emails with malicious links or attachments embedded with malware, such as ransomware, spyware, and other viruses, from reaching email recipients. - Archiving: Stores all previously submitted documents for use in audits or future submissions. - Archiving & Retention: Moving and separately storing data that is not actively used or continuous storage of data for compliance purposes - Authentication: Verify the identity of users/devices to enable secure access - Data Loss Prevention: Safeguard confidential data and meet compliance regulations - Data Recovery: Ability to restore deleted, hidden, or lost data from an email server/system - Data Storage Management: Manage and store data in a database - Disaster Recovery: Plan and implement business continuity measures in case of unforeseen events - Email Filtering: Use filters to process, organize and categorize emails to identify spam, malware and other unwanted messages - Email Management: Manage, store and organize emails within the system or via third-party apps - Email Monitoring: Ability to oversee and optimize the operations of a mail server - Email Routing: Route emails to multiple servers - Email Tracking: Track delivered, received, and opened emails - Encryption: Convert data into a code for security - Filtering: Find & retrieve relevant data or documents - Monitoring: Observe and track the demand, usage, progress or quality of a system, product, or user - Policy Management: Create, manage, and track policies and procedures within an organization - Reporting: Empower brands with an intelligent reporting tool and dashborads to provide visibility into number of viewers, likes, number of asked questions, and chat entries, total number of clicks, CTR, and entire stream health - Reporting & Statistics: Collection, analysis, and representation of numerical data and generation of reports to understand various patterns - Reporting/Analytics: View and track pertinent metrics to find patterns and gain insights from data - Spam Blocker: Filters used to determine different types of malware threats - Spam Quarantine: Feature in email systems that identifies suspicious or unsolicited emails and holds them in a separate folder for review or deletion - Threat Intelligence: Information to prevent, understand and identify cyber threats - Threat Protection: Protect incoming and outgoing communications against malware, spam, display spoofing, and other threats - Whitelisting/Blacklisting: Control system access and/or deliverability for applications and email addresses --- Get Advice We can help you find the software with the features you need. Features 4.0 (1) 4.0 Based on 1 reviews ## Pricing Value for money 4.0 (1) Free Trial Basic $1.00 Flat Rate,Per Month Value for money 4.0 (1) 4.0 Based on 1 reviews Connect with a Capterra advisor for a free 15-minute consultation Get a personalized software list aligned to your business needs with guidance from our expert advisors. Our team has helped 1 million+ businesses like yours find options that fit their needs. ## Support, customer service and training options Customer Service 5.0 (1) Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos Deployment - Web - Android - iPhone/iPad Typical users - Freelancers - Small businesses - Mid size businesses - Enterprises Customer Service 5.0 (1) 5.0 Based on 1 reviews ## User reviews Overall rating 5.0 Based on 1 reviews Filter by rating 5(1) 4(0) 3(0) 2(0) 1(0) Mentioned topic Sorted by most recent ML Ming L. Accounting Manager Medical Devices ### "Excellent Protection with Exceptional Customer Support" 5.0 Overall Rating 5.0 5.0 Ease of Use 4.0 4.0 Features 4.0 4.0 Customer Service 5.0 5.0 Likelihood to Recommend 9/10 December 1, 2016 We migrate from old email system to TTAsia's Hosted Exchange with Sentry EDS protection. The migration was smooth with a dedicated engineer supporting us on 7x24 basis during the period. The spam in my mailbox dropped from 10+ a day to basically zero. Their spam quarantine report is easy to use to review, release, or whitelist quarantined emails. With a lot of malware and ransomware nowadays, I believe it is crucial for any company to put email security in the hands of email professionals. They are in the market for 15 years and was referred by my friend using them for 10 years. Although I am a mid-size SME, they still treat me like a VIP with phone, email and instant message support. The response is quick and act immediately without delay. Everything is keep track by the ticketing system with update. I love it and would highly recommended to anyone who is looking for good email solutions. Pros Excellent spam and virus filtering with superb support team. Cons None Review source Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication. ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox.