# Paubox Email Encryption vs SEPPmail Secure Email Gateway: side-by-side comparison (2026)

[Paubox Email Encryption](https://cybersectools.com/tools/paubox-email-encryption) is a commercial [email encryption](https://cybersectools.com/categories/email-encryption) solution by [Paubox](https://cybersectools.com/companies/paubox). [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

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

### Use cases and capabilities

| | Paubox Email Encryption | SEPPmail Secure Email Gateway |
|---|---|---|
| Healthcare | Yes | – |
| TLS | Yes | Yes |
| Encryption | – | Yes |
| Gateway | – | Yes |
| SMTP | – | Yes |
| GDPR | – | Yes |
| DKIM | – | Yes |
| SPF | – | Yes |
| DMARC | – | Yes |
| PII | – | Yes |
| Security Compliance Training | – | Yes |

### Core features

**Paubox Email Encryption**

8 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

**Paubox Email Encryption**

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.

## Which one fits you

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

- [Paubox Email Encryption](https://cybersectools.com/tools/paubox-email-encryption) fits if you want a cloud product and you are a startup.
- [SEPPmail Secure Email Gateway](https://cybersectools.com/tools/seppmail-secure-email-gateway) fits if you need to run it on your own servers.

## Paubox Email Encryption vs SEPPmail Secure Email Gateway FAQ

Common questions when comparing Paubox Email Encryption vs SEPPmail Secure Email Gateway for email encryption.

### What is the difference between Paubox Email Encryption and SEPPmail Secure Email Gateway?

**Paubox Email Encryption**: HIPAA-compliant email encryption for Google Workspace and Microsoft 365. Built by Paubox.

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

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

### Who makes Paubox Email Encryption and SEPPmail Secure Email Gateway?

**Paubox Email Encryption** is made by Paubox. **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 Paubox Email Encryption a good alternative to SEPPmail Secure Email Gateway?

Often, yes. Paubox Email Encryption and SEPPmail Secure Email Gateway are both Email Encryption products, and both cover TLS. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Paubox Email Encryption vs Z1 SecureMail Gateway](https://cybersectools.com/compare/paubox-email-encryption-vs-zertificon-z1-solutions)
- [Paubox Email Encryption vs LuxSci](https://cybersectools.com/compare/luxsci-vs-paubox-email-encryption)
- [Paubox Email Encryption vs CloudMask E2EE for Healthcare](https://cybersectools.com/compare/cloudmask-e2ee-for-healthcare-vs-paubox-email-encryption)
- [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 CloudMask E2EE for Healthcare](https://cybersectools.com/compare/cloudmask-e2ee-for-healthcare-vs-seppmail-secure-email-gateway)

## Alternatives to each

- [See all Paubox Email Encryption alternatives](https://cybersectools.com/alternatives/paubox-email-encryption)
- [See all SEPPmail Secure Email Gateway alternatives](https://cybersectools.com/alternatives/seppmail-secure-email-gateway)

---

Source: https://cybersectools.com/compare/paubox-email-encryption-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/paubox-email-encryption.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Paubox Email Encryption 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