Head-to-head · Cloud Email Security
Sophos Email vs OpenText Core Email Threat Protection
Sophos Email leads on 0 checks, OpenText Core Email Threat Protection on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreSophos Email · 9.2/10
- Free trialonly Sophos Email
- Most featuresOpenText Core Email Threat Protection · 1 of 2
Sophos Email scores higher on our rubric for cloud email security: 9.2 against 8.6 out of 10; our editors rank them #2 and #8.
Sophos Email is the better fit for full-featured cloud email defense. OpenText Core Email Threat Protection is the better fit for microsoft 365-focused email security.
- Sophos Email fits best
Full-featured cloud email defense
- OpenText Core Email Threat Protection fits best
Microsoft 365-focused email security
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Side by side
| Feature | Sophos Email 9.2/10 Visit ↗ | OpenText Core Email Threat Protection 8.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.2 | 8.6 |
| Ranking | #2 in Cloud Email Security | #8 in Cloud Email Security |
| Best for | Full-featured cloud email defense | Microsoft 365-focused email security |
| Pricing model | Paid | Paid |
| Starting price | — | Pricing on request |
| Free plan | — | Not checked yet |
| Free trial | 30 days | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Integrations | 5 integrations | 2 integrations |
| Features Sophos Email 0/2 · OpenText Core Email Threat Protection 1/2 | ||
| Post-delivery remediation | Not checked yet | ✓ (best) |
| Data loss prevention | Not checked yet | Not checked yet |
| Specs | ||
| Deployment model | Not checked yet | Gateway |
| Threat detection | Not checked yet | phishing, ransomware, zero-day malware, viruses, impersonation, business email compromise, spoofing, spam |
| Email platforms | Not checked yet | Microsoft 365 |
| Maximum users | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Sophos Email is a cloud-managed security product for business, educational, and government organizations. It protects mailboxes against phishing, business email compromise, spam, malicious URLs, malware, ransomware delivery, and… Read the review → |
OpenText Core Email Threat Protection is a cloud-deployed gateway service for businesses of all sizes, including MSPs and VARs, that use Microsoft 365. It filters inbound, outbound and internal email, detecting phishing, ransomware,… Read the review → |
Strengths and trade-offs
Sophos Email — where it wins
- AI detection, sandboxing, URL checks, and post-delivery clawback
- DLP policies, email encryption, and portal encryption
- Microsoft 365 and Google Workspace integration with Sophos ecosystem links
Where it doesn't
- Pricing requires contacting sales rather than choosing a public numerical plan
- There is no perpetual free plan after the 30-day trial
- Cloud deployment may not fit organizations requiring on-premises email security
OpenText Core Email Threat Protection — where it wins
- Filters inbound, outbound and internal messages with multilayer threat detection
- Click-time link scanning plus attachment disarming and sandbox analysis
- Retracts delivered Microsoft 365 messages and protects against impersonation
Where it doesn't
- Subscription pricing requires contacting OpenText or a partner
- Email platform coverage centers on Microsoft 365
- Support is provided through tickets, even with 24/7 availability
- Sophos Email9.2/10 · Pricing on request · 30-day trial
A broad cloud defense stack for organizations securing Microsoft 365 or Google Workspace mail.
Visit SophosFull verdict → - OpenText Core Email Threat Protection8.6/10 · Pricing on request
A Microsoft 365-focused gateway combining filtering, remediation and centralized oversight.
Visit OpenTextFull verdict →
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All cloud email security comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update