# Hornetsecurity vs TrustLayer Mail: side-by-side comparison (2026)

[Hornetsecurity](https://cybersectools.com/tools/hornetsecurity) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Hornetsecurity](https://cybersectools.com/companies/hornetsecurity). [TrustLayer Mail](https://cybersectools.com/tools/trustlayer-mail) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [TrustLayer](https://cybersectools.com/companies/trustlayer). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more.

## Side-by-side comparison

| | Hornetsecurity | TrustLayer Mail |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Security Platforms | Email Security Platforms |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Hornetsecurity | TrustLayer |
| Headquarters | – | – |

### Use cases and capabilities

| | Hornetsecurity | TrustLayer Mail |
|---|---|---|
| Microsoft 365 | Yes | Yes |
| Office 365 | Yes | – |
| Microsoft | Yes | – |
| Spam Prevention | Yes | – |
| Multi Tenancy | Yes | – |

### Core features

**Hornetsecurity**

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

**TrustLayer Mail**

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

### Integrations

**Hornetsecurity**

1 integration listed. Sign in on the page to see them.

**TrustLayer Mail**

1 integration 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.

- [Hornetsecurity](https://cybersectools.com/tools/hornetsecurity) fits if you want a cloud product.
- [TrustLayer Mail](https://cybersectools.com/tools/trustlayer-mail) fits if you need both cloud and on-premises options and you are a startup.

## Hornetsecurity vs TrustLayer Mail FAQ

Common questions when comparing Hornetsecurity vs TrustLayer Mail for email security platforms.

### What is the difference between Hornetsecurity and TrustLayer Mail?

**Hornetsecurity**: Cloud security platform for M365 covering email, backup, and awareness. Built by Hornetsecurity.

**TrustLayer Mail**: Email security platform with inline threat protection and compliant archiving. Built by TrustLayer.

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

### Who makes Hornetsecurity and TrustLayer Mail?

**Hornetsecurity** is made by Hornetsecurity. **TrustLayer Mail** is made by TrustLayer. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Hornetsecurity a good alternative to TrustLayer Mail?

Often, yes. Hornetsecurity and TrustLayer Mail are both Email Security Platforms products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Hornetsecurity vs SpamTitan for Office 365](https://cybersectools.com/compare/hornetsecurity-vs-spamtitan-for-office-365)
- [Hornetsecurity vs Vircom Email Security](https://cybersectools.com/compare/hornetsecurity-vs-vircom-email-security)
- [Hornetsecurity vs ID Agent Graphus](https://cybersectools.com/compare/hornetsecurity-vs-id-agent-graphus)
- [TrustLayer Mail vs SpamTitan for Office 365](https://cybersectools.com/compare/spamtitan-for-office-365-vs-trustlayer-mail)
- [TrustLayer Mail vs Vircom Email Security](https://cybersectools.com/compare/trustlayer-mail-vs-vircom-email-security)
- [TrustLayer Mail vs ID Agent Graphus](https://cybersectools.com/compare/id-agent-graphus-vs-trustlayer-mail)

## Alternatives to each

- [See all Hornetsecurity alternatives](https://cybersectools.com/alternatives/hornetsecurity)
- [See all TrustLayer Mail alternatives](https://cybersectools.com/alternatives/trustlayer-mail)

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Source: https://cybersectools.com/compare/hornetsecurity-vs-trustlayer-mail

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

More on Hornetsecurity and TrustLayer Mail: 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