# Cloudmark Authority vs ID Agent Graphus: side-by-side comparison (2026)

[Cloudmark Authority](https://cybersectools.com/tools/cloudmark-authority) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Cloudmark](https://cybersectools.com/companies/cloudmark). [ID Agent Graphus](https://cybersectools.com/tools/id-agent-graphus) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [ID Agent](https://cybersectools.com/companies/id-agent). 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

| | Cloudmark Authority | ID Agent Graphus |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Security Platforms | Email Security Platforms |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Cloudmark | ID Agent |
| Headquarters | – | – |

### Use cases and capabilities

| | Cloudmark Authority | ID Agent Graphus |
|---|---|---|
| Spam Prevention | Yes | Yes |
| Microsoft 365 | – | Yes |
| Ransomware | – | Yes |
| Zero Day | – | Yes |

### Core features

**Cloudmark Authority**

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

**ID Agent Graphus**

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

### Integrations

**Cloudmark Authority**

No integrations listed.

**ID Agent Graphus**

8 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.

- [Cloudmark Authority](https://cybersectools.com/tools/cloudmark-authority) fits if you need to run it on your own servers.
- [ID Agent Graphus](https://cybersectools.com/tools/id-agent-graphus) fits if you want a cloud product and you are a startup or a small business or a mid-market company.

## Cloudmark Authority vs ID Agent Graphus FAQ

Common questions when comparing Cloudmark Authority vs ID Agent Graphus for email security platforms.

### What is the difference between Cloudmark Authority and ID Agent Graphus?

**Cloudmark Authority**: Carrier-grade email security for ISPs blocking spam, phishing, and malware. Built by Cloudmark.

**ID Agent Graphus**: AI-powered anti-phishing platform for Microsoft 365 & Google Workspace. Built by ID Agent.

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

### Who makes Cloudmark Authority and ID Agent Graphus?

**Cloudmark Authority** is made by Cloudmark. **ID Agent Graphus** is made by ID Agent. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Cloudmark Authority a good alternative to ID Agent Graphus?

Often, yes. Cloudmark Authority and ID Agent Graphus are both Email Security Platforms products, and both cover Spam Prevention. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Cloudmark Authority vs SpamTitan for Office 365](https://cybersectools.com/compare/cloudmark-authority-vs-spamtitan-for-office-365)
- [Cloudmark Authority vs ESET Cloud Office Security](https://cybersectools.com/compare/cloudmark-authority-vs-eset-cloud-office-security)
- [Cloudmark Authority vs Bitdefender GravityZone Security for Exchange](https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-cloudmark-authority)
- [ID Agent Graphus vs SpamTitan for Office 365](https://cybersectools.com/compare/id-agent-graphus-vs-spamtitan-for-office-365)
- [ID Agent Graphus vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-id-agent-graphus)
- [ID Agent Graphus vs Bitdefender GravityZone Security for Exchange](https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-id-agent-graphus)

## Alternatives to each

- [See all Cloudmark Authority alternatives](https://cybersectools.com/alternatives/cloudmark-authority)
- [See all ID Agent Graphus alternatives](https://cybersectools.com/alternatives/id-agent-graphus)

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Source: https://cybersectools.com/compare/cloudmark-authority-vs-id-agent-graphus

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

More on Cloudmark Authority and ID Agent Graphus: 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