# Galaxkey Email Encryption Software vs Z1 SecureMail Gateway: side-by-side comparison (2026) [Galaxkey Email Encryption Software](https://cybersectools.com/tools/galaxkey-email-encryption-software) is a commercial [email encryption](https://cybersectools.com/categories/email-encryption) solution by [GALAXKEY](https://cybersectools.com/companies/galaxkey). [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 | | Galaxkey Email Encryption Software | Z1 SecureMail Gateway | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Encryption | Email Encryption | | Verified | No | Verified | | Deployment type | Hybrid | Hybrid | | Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise, SMB, Startup | | Company | GALAXKEY | Zertificon Solutions GmbH | | Headquarters | – | – | ### Use cases and capabilities | | Galaxkey Email Encryption Software | 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 **Galaxkey Email Encryption Software** 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 **Galaxkey Email Encryption Software** 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 ## Galaxkey Email Encryption Software vs Z1 SecureMail Gateway FAQ Common questions when comparing Galaxkey Email Encryption Software vs Z1 SecureMail Gateway for email encryption. ### What is the difference between Galaxkey Email Encryption Software and Z1 SecureMail Gateway? **Galaxkey Email Encryption Software**: Email encryption software using FIPS 140-2 compliant modules and RSA keys. Built by GALAXKEY. **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 Galaxkey Email Encryption Software and Z1 SecureMail Gateway? **Galaxkey Email Encryption Software** is made by GALAXKEY. **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 Galaxkey Email Encryption Software a good alternative to Z1 SecureMail Gateway? Often, yes. Galaxkey Email Encryption Software 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 - [Galaxkey Email Encryption Software vs LuxSci](https://cybersectools.com/compare/galaxkey-email-encryption-software-vs-luxsci) - [Galaxkey Email Encryption Software vs SEPPmail Secure Email Gateway](https://cybersectools.com/compare/galaxkey-email-encryption-software-vs-seppmail-secure-email-gateway) - [Galaxkey Email Encryption Software vs Beyond Encryption Mailock Enterprise](https://cybersectools.com/compare/beyond-encryption-mailock-enterprise-vs-galaxkey-email-encryption-software) - [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 Galaxkey Email Encryption Software alternatives](https://cybersectools.com/alternatives/galaxkey-email-encryption-software) - [See all Z1 SecureMail Gateway alternatives](https://cybersectools.com/alternatives/zertificon-z1-solutions) --- Source: https://cybersectools.com/compare/galaxkey-email-encryption-software-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/galaxkey-email-encryption-software.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Galaxkey Email Encryption Software 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