---
description: Detailed reviews on Sentry Email Defense Service based on features, pricing, usability, and ratings. Get a quick overview advantages and disadvantages. Compare Sentry Email Defense Service with similar products.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/getapp/og_logo-94fd2a03a6c7a0e54fc0c9e21a1c0ce9.png
title: Sentry Email Defense Service Reviews, Prices & Ratings | GetApp Canada 2026
---

Breadcrumb: [Home](/) > [Secure Email Gateway Software](/directory/3801/secure-email-gateway/software) > [Sentry Email Defense Service](/software/2047893/sentry-email-defence-service) > [Sentry Email Defense Service Alternatives](https://www.getapp.ca/alternatives/2047893/sentry-email-defence-service)

# Alternatives to Sentry Email Defense Service

Canonical: https://www.getapp.ca/alternatives/2047893/sentry-email-defence-service

> Explore the top alternatives to Sentry Email Defense Service. Compare features, ratings, and reviews to find the best software for your needs.

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## Top Alternatives

1. **SpamTitan** — 4.6/5 (563 reviews) — Anti-spam filter for business email. Vital email security.
   - [View profile](https://www.getapp.ca/software/111357/spamtitan)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/111357/2047893/spamtitan/vs/sentry-email-defence-service)
2. **Microsoft Defender for Office 365** — 4.6/5 (237 reviews) — Cloud-based email security and threat management software
   - [View profile](https://www.getapp.ca/software/2054932/microsoft-defender-for-office-365)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2054932/sentry-email-defence-service/vs/microsoft-defender-for-office-365)
3. **Truecaller** — 4.5/5 (64 reviews) — Spam Blocking and Caller ID
   - [View profile](https://www.getapp.ca/software/2050111/truecaller)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2050111/sentry-email-defence-service/vs/truecaller)
4. **ALTOSPAM** — 4.8/5 (73 reviews) — Effectively protect all your company's emails
   - [View profile](https://www.getapp.ca/software/2049455/altospam)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2049455/sentry-email-defence-service/vs/altospam)
5. **Trustifi** — 5.0/5 (20 reviews) — Protect Your Business Emails with AI-Powered Security
   - [View profile](https://www.getapp.ca/software/2045015/trustifi)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2045015/2047893/trustifi/vs/sentry-email-defence-service)
6. **ESET Endpoint Security** — 4.7/5 (1169 reviews) — Network security, network monitoring \& endpoint protection
   - [View profile](https://www.getapp.ca/software/119799/eset-endpoint-security)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/119799/2047893/eset-endpoint-security/vs/sentry-email-defence-service)
7. **ContentCatcher** — 4.9/5 (12 reviews) — Cloud-based email security, phishing protection \& anti-spam
   - [View profile](https://www.getapp.ca/software/116963/contentcatcher)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/116963/2047893/contentcatcher/vs/sentry-email-defence-service)
8. **Graphus** — 4.3/5 (27 reviews) — Cloud-based email security software
   - [View profile](https://www.getapp.ca/software/2054894/graphus)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2054894/sentry-email-defence-service/vs/graphus)
9. **SpamHero** — 4.5/5 (15 reviews) — Saving the world from spam, one domain at a time\!
   - [View profile](https://www.getapp.ca/software/2054562/spamhero)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2054562/sentry-email-defence-service/vs/spamhero)
10. **Security Gateway by MDaemon** — 4.9/5 (15 reviews) — Powerful yet flexible email security software.
    - [View profile](https://www.getapp.ca/software/2046580/security-gateway-by-mdaemon)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2046580/2047893/security-gateway-by-mdaemon/vs/sentry-email-defence-service)
11. **Topsec Cloud Solutions** — 4.9/5 (69 reviews) — Your Managed Email Security Specialists
    - [View profile](https://www.getapp.ca/software/104417/blockmail)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/104417/2047893/blockmail/vs/sentry-email-defence-service)
12. **Mail Assure** — 4.5/5 (29 reviews) — Email, Secured.
    - [View profile](https://www.getapp.ca/software/113771/solarwinds-mail-assure)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/113771/2047893/solarwinds-mail-assure/vs/sentry-email-defence-service)
13. **Zerospam** — 4.8/5 (135 reviews) — Cloud email security \& anti-spam solution
    - [View profile](https://www.getapp.ca/software/113483/zerospam)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/113483/2047893/zerospam/vs/sentry-email-defence-service)
14. **Symantec Email Security.cloud** — 4.5/5 (159 reviews) — Anti-spam and email security software
    - [View profile](https://www.getapp.ca/software/2053776/email-security-cloud)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2053776/sentry-email-defence-service/vs/email-security-cloud)
15. **Cisco Secure Email** — 4.6/5 (25 reviews) — Cloud-based email security tool for preventing cyberattacks
    - [View profile](https://www.getapp.ca/software/2047907/cisco-secure-email)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2047907/sentry-email-defence-service/vs/cisco-secure-email)
16. **iQ.Suite aaS** (0 reviews) — Enterprise email management \& security solution for M365
    - [View profile](https://www.getapp.ca/software/2062681/iq-suite-aas)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2062681/sentry-email-defence-service/vs/iq-suite-aas)
17. **Avanan** — 4.8/5 (51 reviews) — Email Security — Reinvented
    - [View profile](https://www.getapp.ca/software/115095/avanan)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/115095/2047893/avanan/vs/sentry-email-defence-service)
18. **Abnormal AI** — 5.0/5 (2 reviews) — A Fundamentally Different Approach to Email Security
    - [View profile](https://www.getapp.ca/software/2054809/abnormal-security)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2054809/sentry-email-defence-service/vs/abnormal-security)
19. **Area 1** (0 reviews) — Secure email gateway and anti-spam software
    - [View profile](https://www.getapp.ca/software/2047922/area-1)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2047922/sentry-email-defence-service/vs/area-1)
20. **Libraesva Email Security** — 4.9/5 (50 reviews) — Exceptional Email Security
    - [View profile](https://www.getapp.ca/software/2055001/libraesva-email-security)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2055001/sentry-email-defence-service/vs/libraesva-email-security)

## Related Categories

- [Secure Email Gateway Software](https://www.getapp.ca/directory/3801/secure-email-gateway/software)
- [Anti-spam Software](https://www.getapp.ca/directory/1019/anti-spam/software)
- [Email Security Software](https://www.getapp.ca/directory/475/email-security/software)

## Links

- [View on GetApp](https://www.getapp.ca/alternatives/2047893/sentry-email-defence-service)
- [View Product Profile](https://www.getapp.ca/software/2047893/sentry-email-defence-service)

## This page is available in the following languages

| Locale | URL |
| en | <https://www.getapp.com/security-software/a/sentry-email-defence-service/alternatives/> |
| en-AE | <https://www.getapp.ae/alternatives/2047893/sentry-email-defence-service> |
| en-AU | <https://www.getapp.com.au/alternatives/2047893/sentry-email-defence-service> |
| en-CA | <https://www.getapp.ca/alternatives/2047893/sentry-email-defence-service> |
| en-GB | <https://www.getapp.co.uk/alternatives/2047893/sentry-email-defence-service> |
| en-IE | <https://www.getapp.ie/alternatives/2047893/sentry-email-defence-service> |
| en-NZ | <https://www.getapp.co.nz/alternatives/2047893/sentry-email-defence-service> |
| en-SG | <https://www.getapp.sg/alternatives/2047893/sentry-email-defence-service> |
| en-ZA | <https://www.getapp.za.com/alternatives/2047893/sentry-email-defence-service> |

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