# CloudMask End-to-End Encryption vs Z1 SecureMail Gateway: side-by-side comparison (2026)

[CloudMask End-to-End Encryption](https://cybersectools.com/tools/cloudmask-end-to-end-encryption) is a commercial [email encryption](https://cybersectools.com/categories/email-encryption) solution by [CloudMask](https://cybersectools.com/companies/cloudmask). [Z1 SecureMail Gateway](https://cybersectools.com/tools/zertificon-z1-solutions) is a commercial [email encryption](https://cybersectools.com/categories/email-encryption) solution by [Zertificon Solutions GmbH](https://cybersectools.com/companies/zertificon-solutions-gmbh). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | CloudMask End-to-End Encryption | Z1 SecureMail Gateway |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Encryption | Email Encryption |
| Verified | No | Verified |
| Deployment type | Cloud | Hybrid |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise, SMB, Startup |
| Company | CloudMask | Zertificon Solutions GmbH |
| Headquarters | – | – |

### Use cases and capabilities

| | CloudMask End-to-End Encryption | Z1 SecureMail Gateway |
|---|---|---|
| Encryption | Yes | Yes |
| Gateway | – | Yes |
| GDPR | – | Yes |
| SMTP | – | Yes |
| Microsoft 365 | – | Yes |
| Supply Chain Security | – | Yes |
| Healthcare | – | Yes |
| DKIM | – | Yes |
| TLS | – | Yes |
| DMARC | – | Yes |

### Core features

**CloudMask End-to-End Encryption**

6 features listed. Sign in on the page to see them.

**Z1 SecureMail Gateway**

- Digital email signing for authenticity and integrity
- Automated certificate management via CertMagic®
- Inter-organizational encrypted email exchange via GlobalCrypt®
- Cloud deployment support for Azure/M365 and Google Cloud/Workspace
- Centralized server-side encryption transparent to end users
- GDPR-compliant secure data exchange
- EU NIS2 Directive compliance support
- Secure large file transfer capability

### Integrations

**CloudMask End-to-End Encryption**

3 integrations listed. Sign in on the page to see them.

**Z1 SecureMail Gateway**

- Microsoft Azure
- Microsoft 365
- Google Cloud
- Google Workspace
- Z1 Global TrustPoint
- SwissSign

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [CloudMask End-to-End Encryption](https://cybersectools.com/tools/cloudmask-end-to-end-encryption) fits if you want a cloud product.
- [Z1 SecureMail Gateway](https://cybersectools.com/tools/zertificon-z1-solutions) fits if you need both cloud and on-premises options and you are a startup or a small business.

## CloudMask End-to-End Encryption vs Z1 SecureMail Gateway FAQ

Common questions when comparing CloudMask End-to-End Encryption vs Z1 SecureMail Gateway for email encryption.

### What is the difference between CloudMask End-to-End Encryption and Z1 SecureMail Gateway?

**CloudMask End-to-End Encryption**: E2EE solution for emails, files & SaaS apps with user-held encryption keys, built by CloudMask.

**Z1 SecureMail Gateway**: Enterprise email encryption gateway supporting S/MIME, OpenPGP, and digital signing, built by Zertificon Solutions GmbH. Core capabilities include Digital email signing for authenticity and integrity, Automated certificate management via CertMagic®, Inter-organizational encrypted email exchange via GlobalCrypt®.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes CloudMask End-to-End Encryption and Z1 SecureMail Gateway?

**CloudMask End-to-End Encryption** is made by CloudMask. **Z1 SecureMail Gateway** is made by Zertificon Solutions GmbH. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is CloudMask End-to-End Encryption a good alternative to Z1 SecureMail Gateway?

Often, yes. CloudMask End-to-End Encryption and Z1 SecureMail Gateway are both Email Encryption products, and both cover Encryption. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CloudMask End-to-End Encryption vs LuxSci](https://cybersectools.com/compare/cloudmask-end-to-end-encryption-vs-luxsci)
- [CloudMask End-to-End Encryption vs SEPPmail Secure Email Gateway](https://cybersectools.com/compare/cloudmask-end-to-end-encryption-vs-seppmail-secure-email-gateway)
- [CloudMask End-to-End Encryption vs Beyond Encryption Mailock Enterprise](https://cybersectools.com/compare/beyond-encryption-mailock-enterprise-vs-cloudmask-end-to-end-encryption)
- [Z1 SecureMail Gateway vs LuxSci](https://cybersectools.com/compare/luxsci-vs-zertificon-z1-solutions)
- [Z1 SecureMail Gateway vs SEPPmail Secure Email Gateway](https://cybersectools.com/compare/seppmail-secure-email-gateway-vs-zertificon-z1-solutions)
- [Z1 SecureMail Gateway vs Beyond Encryption Mailock Enterprise](https://cybersectools.com/compare/beyond-encryption-mailock-enterprise-vs-zertificon-z1-solutions)

## Alternatives to each

- [See all CloudMask End-to-End Encryption alternatives](https://cybersectools.com/alternatives/cloudmask-end-to-end-encryption)
- [See all Z1 SecureMail Gateway alternatives](https://cybersectools.com/alternatives/zertificon-z1-solutions)

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Source: https://cybersectools.com/compare/cloudmask-end-to-end-encryption-vs-zertificon-z1-solutions

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/cloudmask-end-to-end-encryption.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on CloudMask End-to-End Encryption and Z1 SecureMail Gateway: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md