# PRIM'X ZEDMAIL vs SEPPmail Secure Email Gateway: side-by-side comparison (2026)

[PRIM'X ZEDMAIL](https://cybersectools.com/tools/primx-zedmail) is a commercial [email encryption](https://cybersectools.com/categories/email-encryption) solution by [PRIM'X](https://cybersectools.com/companies/primx). [SEPPmail Secure Email Gateway](https://cybersectools.com/tools/seppmail-secure-email-gateway) is a commercial [email encryption](https://cybersectools.com/categories/email-encryption) solution by [SEPPmail AG](https://cybersectools.com/companies/seppmail-ag). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | PRIM'X ZEDMAIL | SEPPmail Secure Email Gateway |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Encryption | Email Encryption |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | PRIM'X | SEPPmail AG |
| Headquarters | – | – |

### Use cases and capabilities

| | PRIM'X ZEDMAIL | SEPPmail Secure Email Gateway |
|---|---|---|
| Encryption | Yes | Yes |
| Active Directory | Yes | – |
| Outlook | Yes | – |
| Microsoft 365 | Yes | – |
| iOS | Yes | – |
| Password Management | Yes | – |
| Windows | Yes | – |
| Key Management | Yes | – |
| Office 365 | Yes | – |
| Gateway | – | Yes |
| SMTP | – | Yes |
| GDPR | – | Yes |
| DKIM | – | Yes |
| SPF | – | Yes |
| DMARC | – | Yes |
| TLS | – | Yes |
| PII | – | Yes |
| Security Compliance Training | – | Yes |

### Core features

**PRIM'X ZEDMAIL**

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

**SEPPmail Secure Email Gateway**

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

### Integrations

**PRIM'X ZEDMAIL**

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

**SEPPmail Secure Email Gateway**

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

## PRIM'X ZEDMAIL vs SEPPmail Secure Email Gateway FAQ

Common questions when comparing PRIM'X ZEDMAIL vs SEPPmail Secure Email Gateway for email encryption.

### What is the difference between PRIM'X ZEDMAIL and SEPPmail Secure Email Gateway?

**PRIM'X ZEDMAIL**: Transparent email and attachment encryption for corporate messaging via Outlook. Built by PRIM'X.

**SEPPmail Secure Email Gateway**: Built by SEPPmail AG.

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

### Who makes PRIM'X ZEDMAIL and SEPPmail Secure Email Gateway?

**PRIM'X ZEDMAIL** is made by PRIM'X. **SEPPmail Secure Email Gateway** is made by SEPPmail AG. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is PRIM'X ZEDMAIL a good alternative to SEPPmail Secure Email Gateway?

Often, yes. PRIM'X ZEDMAIL and SEPPmail Secure Email 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

- [PRIM'X ZEDMAIL vs Z1 SecureMail Gateway](https://cybersectools.com/compare/primx-zedmail-vs-zertificon-z1-solutions)
- [PRIM'X ZEDMAIL vs LuxSci](https://cybersectools.com/compare/luxsci-vs-primx-zedmail)
- [PRIM'X ZEDMAIL vs Beyond Encryption Mailock Enterprise](https://cybersectools.com/compare/beyond-encryption-mailock-enterprise-vs-primx-zedmail)
- [SEPPmail Secure Email Gateway vs Z1 SecureMail Gateway](https://cybersectools.com/compare/seppmail-secure-email-gateway-vs-zertificon-z1-solutions)
- [SEPPmail Secure Email Gateway vs LuxSci](https://cybersectools.com/compare/luxsci-vs-seppmail-secure-email-gateway)
- [SEPPmail Secure Email Gateway vs Beyond Encryption Mailock Enterprise](https://cybersectools.com/compare/beyond-encryption-mailock-enterprise-vs-seppmail-secure-email-gateway)

## Alternatives to each

- [See all PRIM'X ZEDMAIL alternatives](https://cybersectools.com/alternatives/primx-zedmail)
- [See all SEPPmail Secure Email Gateway alternatives](https://cybersectools.com/alternatives/seppmail-secure-email-gateway)

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Source: https://cybersectools.com/compare/primx-zedmail-vs-seppmail-secure-email-gateway

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

More on PRIM'X ZEDMAIL and SEPPmail Secure Email 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