# MailProbe (mailprobe.dev)

Checks email addresses for syntax, MX records and a live SMTP mailbox probe, via list upload or an API call.

- Atlas card: https://inite.ai/en/atlas/mailprobe.dev
- Site: https://mailprobe.dev
- For: Email marketers, SaaS product teams and developers verifying addresses before campaigns or signup.
- Use 0/100 · alive 100/100

## Used for

- verify addresses at signup to block fake accounts
- clean an imported email list before sending a campaign
- flag disposable and role-based addresses in contact forms

## Price

- from 5 USD/one-time, free plan (read 2026-10-26 on https://mailprobe.dev/pricing/)

## For developers

- OpenAPI: https://mailprobe.dev/openapi.json (2 paths)
- API docs: https://mailprobe.dev/api-docs
- MCP server: dev.mailprobe/mailprobe (namespace; open on 2026-10-26, 2 tools)
- Read 2026-10-26

## MCP server, measured daily

Server: https://mailprobe.dev/mcp, checked every day since 2026-10-26 (9 checks).

- Answered: 100% of daily checks
- Median first answer: 623 ms
- Sign-in: none
- Context its tool definitions take: about 296 tokens (2 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: gdpr
- Read 2026-10-26

---

Source: INITE Atlas, https://inite.ai/en/atlas/mailprobe.dev. JSON: https://inite.ai/api/atlas/mailprobe.dev. MCP: https://inite.ai/api/mcp (atlas_lookup).