# MailTester (mailtester.com)

Checks email addresses for syntax, mailbox response and disposable domains, then sends test campaigns to seed inboxes to show inbox or spam placement.

- Atlas card: https://inite.ai/en/atlas/mailtester.com
- Site: https://mailtester.com
- For: Marketing and sales teams verifying email lists and checking deliverability before sending campaigns
- Use 0/100 · alive 100/100

## Used for

- verify email lists and remove invalid or disposable addresses
- check whether campaigns land in inbox, promotions or spam
- verify individual leads one at a time at signup

## Price

- from 39 USD/month, no free plan (read 2026-10-16 on https://mailtester.com/pricing/)

## For developers

- MCP server: com.mailtester/email-verification (namespace; open on 2026-10-16, 9 tools)
- Read 2026-10-16

## Your data

- Certifications stated: none
- Read 2026-10-16

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