---
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. **Virtru** — 4.5/5 (39 reviews) — Cloud-based data privacy and security platform
   - [View profile](https://www.getapp.ca/software/2043391/virtru)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2043391/2047893/virtru/vs/sentry-email-defence-service)
2. **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)
3. **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)
4. **Zoho Mail** — 4.5/5 (1066 reviews) — Zoho Mail is a secure, encrypted, and enterprise-ready email
   - [View profile](https://www.getapp.ca/software/10371/zoho-mail)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/10371/2047893/zoho-mail/vs/sentry-email-defence-service)
5. **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)
6. **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)
7. **MimeCast Email Security** — 4.3/5 (80 reviews) — Cloud-based email security and threat intelligence platform
   - [View profile](https://www.getapp.ca/software/2047906/mimecast-email-security)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2047906/sentry-email-defence-service/vs/mimecast-email-security)
8. **SMTP2GO** — 4.9/5 (178 reviews) — Fast, reliable mail delivery and management solution
   - [View profile](https://www.getapp.ca/software/119247/smtp2go)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/119247/2047893/smtp2go/vs/sentry-email-defence-service)
9. **Proofpoint Email Protection** — 4.2/5 (45 reviews) — Secure email gateway management and threat intelligence tool
   - [View profile](https://www.getapp.ca/software/2047900/proofpoint-email-protection)
   - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2047900/sentry-email-defence-service/vs/proofpoint-email-protection)
10. **Secure Exchanges** — 4.6/5 (12 reviews) — Zero-access encrypted email, file transfer and signature
    - [View profile](https://www.getapp.ca/software/2053851/secure-exchanges)
    - [Compare vs Sentry Email Defense Service](https://www.getapp.ca/compare/2047893/2053851/sentry-email-defence-service/vs/secure-exchanges)
11. **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)
12. **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)
13. **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)
14. **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)
15. **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)
16. **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)
17. **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)
18. **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)
19. **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)
20. **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)

## 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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