# Mailosaur

> Platform for testing email and SMS communications end-to-end before production

- **Canonical URI:** https://www.vioscale.ai/software/mailosaur
- **Category:** Email Testing Dev
- **Homepage:** https://mailosaur.com
- **Also known as:** mailosaur
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-25T12:23:24.907Z

## Vioscale score

**60.5 / 100**, confidence 55% (medium). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 50 | 0.052 | 2.6 | ✓ |
| reliability | 0 | 0.073 | 0 | - |
| capabilities | 81.2 | 0.04877777777777778 | 4 | ✓ |
| integrations | 38 | 0.04066666666666666 | 1.5 | ✓ |
| security_posture | 50 | 0.073 | 3.7 | ✓ |
| pricing_transparency | 75 | 0.084 | 6.3 | ✓ |

## Pricing

_As of 2026-08-25, [verify at source](https://mailosaur.com/pricing). Independently observed._

from $20/mo · Subscription · 14-day trial

> From $20/month (billed annually). Free 14-day trial.

| Plan | Price | Free | Commitment |
|---|---|:--:|---|
| Personal | $20/month (billed annually) | - | min 1 seats |
| Core | $50/month (popular) | - | min 5 seats |
| Enterprise | Contact sales | - | - |

### Personal

For individuals requiring email testing essentials

**Included limits:** users: 1 (support for up to 3), inboxes: 1, emails_per_month: 15,000

- Email compatibility testing
- API for test automation
- Forward emails to external addresses

### Core

Collaborative testing scaled for teams

**Included limits:** users: 5 seats, emails_per_month: 75,000

- Team access
- Multiple inboxes
- Email accessibility testing
- Mail rules
- POP3/IMAP connectivity
- SMS support

### Enterprise (Contact sales)

- Custom users and inboxes
- SSO (SAML2/OIDC)
- Separate permissions
- Enterprise security
- Account manager
- Advanced support with SLAs

### Add-ons

- **SMS and authentication** ($37.50/mo)
- **Email previews** ($25/mo)

## About

Provides tools for validating emails and SMS messages through dedicated inboxes and phone numbers, with rendering previews across devices and email clients, integration into CI/CD pipelines, and automation via APIs and testing framework support.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI, Web
- **Deployment:** Cloud / SaaS

## Integrations (21)

_Independently observed._

- Selenium
- Playwright
- Cypress
- TestCafe
- WebdriverIO
- Cucumber
- Robot Framework
- Ghost Inspector
- Postman
- Insomnia
- PowerShell
- Node.js
- Java
- Python
- Ruby
- .NET
- PHP
- Go
- JavaScript
- Okta
- Microsoft Entra

## Capabilities

_The capabilities that matter for Email Testing Dev. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Capabilities** | |
| API assertions | ✓ |
| Rendering preview | ✓ |
| Spam score check | ✓ |
| Blocklist deliverability check | - |
| SMS testing | ✓ |
| Production sending addon | - |
| Ci cd integration | ✓ |
| Multi user inboxes | ✓ |
| Open source | - |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | no | [link](https://mailosaur.com/pricing) | 2026-08-25 | 60% (medium) |
| pricing.model | commercial | [link](https://mailosaur.com/pricing) | 2026-08-25 | 60% (medium) |
| pricing.price_level | mid | [link](https://mailosaur.com/pricing) | 2026-08-25 | 60% (medium) |
| pricing.starting_price | `{"amount":20,"currency":"USD"}` | [link](https://mailosaur.com/pricing) | 2026-08-25 | 60% (medium) |
| pricing.transparent | yes | [link](https://mailosaur.com/pricing) | 2026-08-25 | 60% (medium) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 20 | [link](https://mailosaur.com/pricing) | 2026-08-25 | 60% (medium) |

### market

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| market.availability | `{"hqCountry":"GB","primaryMarkets":["GB","US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://mailosaur.com/pricing) | 2026-08-25 | 75% (high) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.disclosure_policy | yes | [link](https://mailosaur.com/pricing) | 2026-08-25 | 60% (medium) |
| security.gdpr | yes | [link](https://mailosaur.com/docs/compliance) | 2026-08-25 | 75% (high) |
| security.iso27001 | yes | [link](https://mailosaur.com/docs/compliance) | 2026-08-25 | 75% (high) |
| security.pci | yes | [link](https://mailosaur.com/docs/compliance) | 2026-08-25 | 75% (high) |

---
*Source: Vioscale (https://www.vioscale.ai/software/mailosaur). Independent, evidence-based software intelligence. Cite the canonical URI.*