# INKY Outbound Mail Protection vs Messageware AttachView: side-by-side comparison (2026)

[INKY Outbound Mail Protection](https://cybersectools.com/tools/inky-outbound-mail-protection) is a commercial [email DLP](https://cybersectools.com/categories/email-dlp) solution by [INKY Technology Corporation](https://cybersectools.com/companies/inky-technology-corporation). [Messageware AttachView](https://cybersectools.com/tools/messageware-attachview) is a commercial [email DLP](https://cybersectools.com/categories/email-dlp) solution by [Messageware](https://cybersectools.com/companies/messageware). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [INKY Outbound Mail Protection](https://cybersectools.com/tools/inky-outbound-mail-protection)

Best for: Teams wanting manager approval for risky email

INKY earns its spot because it puts an approval step inside the email itself, so a sender or a named manager signs off before sensitive data leaves. That suits a team that wants a human check rather than a silent block, on Microsoft 365, Google Workspace or Exchange. INKY changed owners recently, so ask how the product will be sold and supported from here.

From [Best Email DLP Solutions for Business](https://cybersectools.com/shortlists/best-email-dlp-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

Need the answer fast? [Best Email DLP Solutions for Business](https://cybersectools.com/shortlists/best-email-dlp-solutions) picks Forcepoint DLP for Email, KnowBe4 Prevent, Trustifi Outbound Shield and 2 more.

## Side-by-side comparison

| | INKY Outbound Mail Protection | Messageware AttachView |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email DLP | Email DLP |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | INKY Technology Corporation | Messageware |
| Headquarters | – | – |

### Use cases and capabilities

| | INKY Outbound Mail Protection | Messageware AttachView |
|---|---|---|
| Microsoft 365 | Yes | Yes |
| Microsoft | – | Yes |
| Outlook | – | Yes |

### Core features

**INKY Outbound Mail Protection**

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

**Messageware AttachView**

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

### Integrations

**INKY Outbound Mail Protection**

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

**Messageware AttachView**

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.

- [INKY Outbound Mail Protection](https://cybersectools.com/tools/inky-outbound-mail-protection) fits if you want a cloud product.
- [Messageware AttachView](https://cybersectools.com/tools/messageware-attachview) fits if you need to run it on your own servers.

## INKY Outbound Mail Protection vs Messageware AttachView FAQ

Common questions when comparing INKY Outbound Mail Protection vs Messageware AttachView for email DLP.

### What is the difference between INKY Outbound Mail Protection and Messageware AttachView?

**INKY Outbound Mail Protection**: Outbound email security solution preventing data loss and insider threats. Built by INKY Technology Corporation.

**Messageware AttachView**: OWA add-on that converts email attachments into secure HTML pages. Built by Messageware.

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

### Who makes INKY Outbound Mail Protection and Messageware AttachView?

**INKY Outbound Mail Protection** is made by INKY Technology Corporation. **Messageware AttachView** is made by Messageware. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is INKY Outbound Mail Protection a good alternative to Messageware AttachView?

Often, yes. INKY Outbound Mail Protection and Messageware AttachView are both Email DLP products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [INKY Outbound Mail Protection vs SendGuard for Outlook](https://cybersectools.com/compare/inky-outbound-mail-protection-vs-sendguard-for-outlook)
- [INKY Outbound Mail Protection vs KnowBe4 Prevent](https://cybersectools.com/compare/inky-outbound-mail-protection-vs-knowbe4-prevent-intelligent-data-loss-prevention)
- [INKY Outbound Mail Protection vs VIPRE SafeSend](https://cybersectools.com/compare/inky-outbound-mail-protection-vs-vipre-safesend)
- [Messageware AttachView vs SendGuard for Outlook](https://cybersectools.com/compare/messageware-attachview-vs-sendguard-for-outlook)
- [Messageware AttachView vs KnowBe4 Prevent](https://cybersectools.com/compare/knowbe4-prevent-intelligent-data-loss-prevention-vs-messageware-attachview)
- [Messageware AttachView vs VIPRE SafeSend](https://cybersectools.com/compare/messageware-attachview-vs-vipre-safesend)

## Alternatives to each

- [See all INKY Outbound Mail Protection alternatives](https://cybersectools.com/alternatives/inky-outbound-mail-protection)
- [See all Messageware AttachView alternatives](https://cybersectools.com/alternatives/messageware-attachview)

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Source: https://cybersectools.com/compare/inky-outbound-mail-protection-vs-messageware-attachview

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

More on INKY Outbound Mail Protection and Messageware AttachView: 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