# GLIMPS Email Security for M365 vs SmarterTools SmarterMail: side-by-side comparison (2026)

[GLIMPS Email Security for M365](https://cybersectools.com/tools/glimps-email-security-for-m365) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [GLIMPS](https://cybersectools.com/companies/glimps). [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

| | GLIMPS Email Security for M365 | SmarterTools SmarterMail |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Security Platforms | Email Security Platforms |
| Verified | No | No |
| Deployment type | Hybrid | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | GLIMPS | SmarterTools |
| Headquarters | – | – |

### Use cases and capabilities

| | GLIMPS Email Security for M365 | SmarterTools SmarterMail |
|---|---|---|
| Zero Day | Yes | – |
| DKIM | Yes | Yes |
| DMARC | Yes | Yes |
| Microsoft 365 | Yes | – |
| Spam Prevention | – | Yes |
| Linux | – | Yes |
| Windows | – | Yes |
| SPF | – | Yes |

### Core features

**GLIMPS Email Security for M365**

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

**SmarterTools SmarterMail**

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

### Integrations

**GLIMPS Email Security for M365**

2 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.

- [GLIMPS Email Security for M365](https://cybersectools.com/tools/glimps-email-security-for-m365) fits if you need both cloud and on-premises options.
- [SmarterTools SmarterMail](https://cybersectools.com/tools/smartertools-smartermail) fits if you need to run it on your own servers and you are a startup.

## GLIMPS Email Security for M365 vs SmarterTools SmarterMail FAQ

Common questions when comparing GLIMPS Email Security for M365 vs SmarterTools SmarterMail for email security platforms.

### What is the difference between GLIMPS Email Security for M365 and SmarterTools SmarterMail?

**GLIMPS Email Security for M365**: AI-based email security for M365 with phishing, BEC & malware detection. Built by GLIMPS.

**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 GLIMPS Email Security for M365 and SmarterTools SmarterMail?

**GLIMPS Email Security for M365** is made by GLIMPS. **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 GLIMPS Email Security for M365 a good alternative to SmarterTools SmarterMail?

Often, yes. GLIMPS Email Security for M365 and SmarterTools SmarterMail are both Email Security Platforms products, and both cover DKIM, DMARC. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [GLIMPS Email Security for M365 vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/glimps-email-security-for-m365-vs-mx-layer-outbound-email-filtering)
- [GLIMPS Email Security for M365 vs PowerDMARC Hosted DMARC](https://cybersectools.com/compare/glimps-email-security-for-m365-vs-powerdmarc-hosted-dmarc)
- [GLIMPS Email Security for M365 vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/glimps-email-security-for-m365-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 GLIMPS Email Security for M365 alternatives](https://cybersectools.com/alternatives/glimps-email-security-for-m365)
- [See all SmarterTools SmarterMail alternatives](https://cybersectools.com/alternatives/smartertools-smartermail)

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Source: https://cybersectools.com/compare/glimps-email-security-for-m365-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/glimps-email-security-for-m365.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on GLIMPS Email Security for M365 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
