MailSlurp
Email testing software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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$19.17 per month
Free TrialFree version
Small
Medium
Large
- Information technology and software
- Transportation and logistics
- Healthcare and life sciences
What is MailSlurp
MailSlurp is an email testing platform that provides disposable email inboxes and an API for receiving, sending, and validating emails in automated tests. It is used by software teams to test signup flows, password resets, notifications, and other email-driven workflows in CI/CD pipelines. The product emphasizes programmatic control (REST API and SDKs) and supports both cloud-hosted and self-hosted deployment options for test environments.
API-first test inboxes
MailSlurp provides programmatically created inboxes and message retrieval via a REST API, which fits automated integration and end-to-end testing. Teams can assert on email content, headers, links, and attachments without relying on manual mailbox access. This approach aligns well with CI pipelines where tests need isolated, repeatable inboxes.
Cloud and self-host options
MailSlurp offers a hosted service for quick setup and a self-hosted option for organizations that need more control over data residency and network access. Self-hosting can help teams test in restricted environments where outbound access to third-party services is limited. This flexibility is useful for regulated or security-conscious deployments.
SDKs and automation tooling
MailSlurp provides SDKs and examples that reduce the effort to integrate email assertions into test suites. Common workflows such as waiting for an email, parsing verification codes, and following links can be automated. This can shorten the time needed to build reliable email-related tests compared with ad-hoc mailbox scripting.
Not a marketing email suite
MailSlurp focuses on testing and QA workflows rather than campaign creation, audience management, and marketing automation. Organizations looking for newsletter design tools, segmentation, and deliverability analytics typically need a separate platform. As a result, it is best positioned as a testing utility rather than an end-to-end email operations system.
Requires engineering setup
Most value comes from API usage, which assumes developer involvement to integrate with test frameworks and CI. Non-technical users may find it less approachable than GUI-centric email preview and collaboration tools. Teams may need to build internal helpers to standardize patterns across multiple test suites.
Self-hosting adds operational overhead
Running MailSlurp in a private environment can require maintaining infrastructure, upgrades, and monitoring. Email-related dependencies (DNS, SMTP routing, inbound handling) can introduce additional configuration complexity. These operational tasks can offset some of the convenience gained from keeping testing infrastructure in-house.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Free / Personal | $0 per month (billed annually) | Temporary inboxes, limited quotas (Included new addresses: 30/month; Included inbound emails: 200/month; Included outbound emails: 0/month); non-commercial / personal use; no sending. |
| Starter | $19.17 per month (billed annually) | Small limits; non-commercial tag (per page); permanent inboxes; sending enabled; phone rental; Included new addresses: 1,000/month; Included inbound emails: 5,000/month; Included outbound emails: 1,000/month. |
| Pro | $63.33 per month (billed annually) | Business/commercial use; medium limits; permanent inboxes; sending; phone rental; custom domains; Included new addresses: 2,000/month; Included inbound emails: 10,000/month; Included outbound emails: 2,000/month. |
| Team | $207.50 per month (billed annually) | For small teams; large limits; commercial license; permanent inboxes; sending; phone rental; custom domains; team access; Included new addresses: 10,000/month; Included inbound emails: 20,000/month; Included outbound emails: 5,000/month. |
| Enterprise | Custom (invoiced) | Custom limits and compliance features; SAML SSO support, compliance auditing, custom invoicing; Contact sales for quote. |
Addons & usage-based pricing (from official pricing page):
- Extra inboxes: $3.00 per 1000 inboxes
- Extra emails (extra receiving/sending): $0.99 per 1000 emails
- Email address verification: $0.010 per address
- Phone/number rental and per-SMS pricing: listed under Phone pricing on the official site (country-specific).
Seller details
MailSlurp Ltd
Unsure
Private
https://www.mailslurp.com
https://x.com/mailslurp
https://www.linkedin.com/company/mailslurp/
