# Kaseya 365 Advanced Threat Protection vs SmarterTools SmarterMail: side-by-side comparison (2026)

[Kaseya 365 Advanced Threat Protection](https://cybersectools.com/tools/kaseya-365-advanced-threat-protection) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Kaseya](https://cybersectools.com/companies/kaseya). [SmarterTools SmarterMail](https://cybersectools.com/tools/smartertools-smartermail) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [SmarterTools](https://cybersectools.com/companies/smartertools). 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

| | Kaseya 365 Advanced Threat Protection | SmarterTools SmarterMail |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Security Platforms | Email Security Platforms |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Kaseya | SmarterTools |
| Headquarters | – | – |

### Use cases and capabilities

| | Kaseya 365 Advanced Threat Protection | SmarterTools SmarterMail |
|---|---|---|
| Spam Prevention | – | Yes |
| Linux | – | Yes |
| Windows | – | Yes |
| DKIM | – | Yes |
| SPF | – | Yes |
| DMARC | – | Yes |

### Core features

**Kaseya 365 Advanced Threat Protection**

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

**SmarterTools SmarterMail**

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

### Integrations

**Kaseya 365 Advanced Threat Protection**

44 integrations listed. Sign in on the page to see them.

**SmarterTools SmarterMail**

6 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.

- [Kaseya 365 Advanced Threat Protection](https://cybersectools.com/tools/kaseya-365-advanced-threat-protection) fits if you want a cloud product.
- [SmarterTools SmarterMail](https://cybersectools.com/tools/smartertools-smartermail) fits if you need to run it on your own servers and you are a startup.

## Kaseya 365 Advanced Threat Protection vs SmarterTools SmarterMail FAQ

Common questions when comparing Kaseya 365 Advanced Threat Protection vs SmarterTools SmarterMail for email security platforms.

### What is the difference between Kaseya 365 Advanced Threat Protection and SmarterTools SmarterMail?

**Kaseya 365 Advanced Threat Protection**: ATP solution for SaaS & email with AI-driven detection & auto-response. Built by Kaseya.

**SmarterTools SmarterMail**: Email server with antispam, antivirus, and security features for Linux/Windows. Built by SmarterTools.

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

### Who makes Kaseya 365 Advanced Threat Protection and SmarterTools SmarterMail?

**Kaseya 365 Advanced Threat Protection** is made by Kaseya. **SmarterTools SmarterMail** is made by SmarterTools. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Kaseya 365 Advanced Threat Protection a good alternative to SmarterTools SmarterMail?

Often, yes. Kaseya 365 Advanced Threat Protection and SmarterTools SmarterMail are both Email Security Platforms products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Kaseya 365 Advanced Threat Protection vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/kaseya-365-advanced-threat-protection-vs-mx-layer-outbound-email-filtering)
- [Kaseya 365 Advanced Threat Protection vs PowerDMARC Hosted DMARC](https://cybersectools.com/compare/kaseya-365-advanced-threat-protection-vs-powerdmarc-hosted-dmarc)
- [Kaseya 365 Advanced Threat Protection vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/kaseya-365-advanced-threat-protection-vs-sendmarc-dmarc-managed-services)
- [SmarterTools SmarterMail vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-smartertools-smartermail)
- [SmarterTools SmarterMail vs PowerDMARC Hosted DMARC](https://cybersectools.com/compare/powerdmarc-hosted-dmarc-vs-smartertools-smartermail)
- [SmarterTools SmarterMail vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/sendmarc-dmarc-managed-services-vs-smartertools-smartermail)

## Alternatives to each

- [See all Kaseya 365 Advanced Threat Protection alternatives](https://cybersectools.com/alternatives/kaseya-365-advanced-threat-protection)
- [See all SmarterTools SmarterMail alternatives](https://cybersectools.com/alternatives/smartertools-smartermail)

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Source: https://cybersectools.com/compare/kaseya-365-advanced-threat-protection-vs-smartertools-smartermail

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/kaseya-365-advanced-threat-protection.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Kaseya 365 Advanced Threat Protection and SmarterTools SmarterMail: 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
