# mailspoof vs Red Sift OnDMARC: side-by-side comparison (2026)

[mailspoof](https://cybersectools.com/tools/mailspoof) is a free [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution. [Red Sift OnDMARC](https://cybersectools.com/tools/red-sift-ondmarc) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Red Sift](https://cybersectools.com/companies/red-sift). 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

| | mailspoof | Red Sift OnDMARC |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Email Security Platforms | Email Security Platforms |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| GitHub stars | 131 | – |
| Last commit | Oct 2020 | – |
| Company | – | Red Sift |
| Headquarters | – | – |

### Use cases and capabilities

| | mailspoof | Red Sift OnDMARC |
|---|---|---|
| Red Team | Yes | – |
| OSINT | Yes | – |
| Spoofing | Yes | – |
| DMARC | Yes | Yes |
| SPF | Yes | Yes |
| DKIM | – | Yes |
| TLS | – | Yes |

### Core features

**mailspoof**

No features listed.

**Red Sift OnDMARC**

10 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.

- [mailspoof](https://cybersectools.com/tools/mailspoof) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.
- [Red Sift OnDMARC](https://cybersectools.com/tools/red-sift-ondmarc) fits if you want a cloud product.

## mailspoof vs Red Sift OnDMARC FAQ

Common questions when comparing mailspoof vs Red Sift OnDMARC for email security platforms.

### What is the difference between mailspoof and Red Sift OnDMARC?

**mailspoof**: A command-line tool that analyzes SPF and DMARC records to identify domains vulnerable to email spoofing attacks.

**Red Sift OnDMARC**: Email authentication platform implementing DMARC, SPF, DKIM, and BIMI protocols. Built by Red Sift.

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

### Who makes mailspoof and Red Sift OnDMARC?

**mailspoof** is open-source with 131 GitHub stars. **Red Sift OnDMARC** is made by Red Sift. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is mailspoof a good alternative to Red Sift OnDMARC?

Often, yes. mailspoof and Red Sift OnDMARC are both Email Security Platforms products, and both cover DMARC, SPF. Key differences: mailspoof is Free while Red Sift OnDMARC is Commercial, mailspoof is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [mailspoof vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/mailspoof-vs-sendmarc-dmarc-managed-services)
- [mailspoof vs InboxSeguro](https://cybersectools.com/compare/inboxseguro-vs-mailspoof)
- [mailspoof vs Mimecast DMARC Analyzer](https://cybersectools.com/compare/mailspoof-vs-mimecast-dmarc-analyzer)
- [Red Sift OnDMARC vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/red-sift-ondmarc-vs-sendmarc-dmarc-managed-services)
- [Red Sift OnDMARC vs InboxSeguro](https://cybersectools.com/compare/inboxseguro-vs-red-sift-ondmarc)
- [Red Sift OnDMARC vs Mimecast DMARC Analyzer](https://cybersectools.com/compare/mimecast-dmarc-analyzer-vs-red-sift-ondmarc)

## Alternatives to each

- [See all mailspoof alternatives](https://cybersectools.com/alternatives/mailspoof)
- [See all Red Sift OnDMARC alternatives](https://cybersectools.com/alternatives/red-sift-ondmarc)

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Source: https://cybersectools.com/compare/mailspoof-vs-red-sift-ondmarc

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

More on mailspoof and Red Sift OnDMARC: 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