# MX Layer Outbound Email Filtering vs ThreatDown Email Security: side-by-side comparison (2026)

[MX Layer Outbound Email Filtering](https://cybersectools.com/tools/mx-layer-outbound-email-filtering) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [MX Layer](https://cybersectools.com/companies/mx-layer). [ThreatDown Email Security](https://cybersectools.com/tools/threatdown-email-security) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [ThreatDown by Malwarebytes](https://cybersectools.com/companies/threatdown-by-malwarebytes). 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

| | MX Layer Outbound Email Filtering | ThreatDown Email Security |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Security Platforms | Email Security Platforms |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | MX Layer | ThreatDown by Malwarebytes |
| Headquarters | – | – |

### Use cases and capabilities

| | MX Layer Outbound Email Filtering | ThreatDown Email Security |
|---|---|---|
| Content Filtering | Yes | – |
| DKIM | Yes | – |
| DMARC | Yes | – |
| SPF | Yes | – |
| Spam Prevention | Yes | – |

### Core features

**MX Layer Outbound Email Filtering**

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

**ThreatDown Email Security**

8 features 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.

- [MX Layer Outbound Email Filtering](https://cybersectools.com/tools/mx-layer-outbound-email-filtering) fits if you are a startup.

## MX Layer Outbound Email Filtering vs ThreatDown Email Security FAQ

Common questions when comparing MX Layer Outbound Email Filtering vs ThreatDown Email Security for email security platforms.

### What is the difference between MX Layer Outbound Email Filtering and ThreatDown Email Security?

**MX Layer Outbound Email Filtering**: Outbound email filtering platform for spam prevention and IP reputation mgmt, built by MX Layer.

**ThreatDown Email Security**: AI-powered email security platform for phishing and BEC protection, built by ThreatDown by Malwarebytes.

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

### Who makes MX Layer Outbound Email Filtering and ThreatDown Email Security?

**MX Layer Outbound Email Filtering** is made by MX Layer. **ThreatDown Email Security** is made by ThreatDown by Malwarebytes. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is MX Layer Outbound Email Filtering a good alternative to ThreatDown Email Security?

Often, yes. MX Layer Outbound Email Filtering and ThreatDown Email Security are both Email Security Platforms products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [MX Layer Outbound Email Filtering vs SmarterTools SmarterMail](https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-smartertools-smartermail)
- [MX Layer Outbound Email Filtering vs SpamTitan Gateway](https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-spamtitan-gateway)
- [MX Layer Outbound Email Filtering vs Infonaligy Proofpoint Email Security](https://cybersectools.com/compare/infonaligy-proofpoint-email-security-vs-mx-layer-outbound-email-filtering)
- [ThreatDown Email Security vs SmarterTools SmarterMail](https://cybersectools.com/compare/smartertools-smartermail-vs-threatdown-email-security)
- [ThreatDown Email Security vs SpamTitan Gateway](https://cybersectools.com/compare/spamtitan-gateway-vs-threatdown-email-security)
- [ThreatDown Email Security vs Infonaligy Proofpoint Email Security](https://cybersectools.com/compare/infonaligy-proofpoint-email-security-vs-threatdown-email-security)

## Alternatives to each

- [See all MX Layer Outbound Email Filtering alternatives](https://cybersectools.com/alternatives/mx-layer-outbound-email-filtering)
- [See all ThreatDown Email Security alternatives](https://cybersectools.com/alternatives/threatdown-email-security)

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Source: https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-threatdown-email-security

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

More on MX Layer Outbound Email Filtering and ThreatDown Email Security: 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