# MailTester

Verify email addresses one at a time or in bulk lists, with a risk score and segmented exports.

- Website: https://mailtester.com/
- Listing: https://openack.co/p/mailtester
- Not evaluated. Listed by OpenACK: its 6 claimed capabilities are OpenACK's reading of the product's public site, not the maker's word, and nobody has checked them yet.

OpenACK's description (not checked):

> MailTester checks whether email addresses can receive mail using syntax, MX, live SMTP, disposable and spam-trap checks, and returns a verdict with a 0–100 risk score. Lists can be uploaded and downloaded in segments. Paid tiers add inbox placement tests and blacklist monitoring.

## Capabilities

- **not evaluated**: Verify a single email address
- **not evaluated**: See a 0–100 risk score for an address
- **not evaluated**: Get a typo correction suggestion for an address
- **not evaluated**: View the history of past checks
- **not evaluated**: Upload a CSV list and verify every address
- **not evaluated**: Download deliverable, risky and undeliverable results as separate files

## What the statuses mean

- **confirmed** (ACK): a person from OpenACK signed in with a test account and saw it work.
- **not confirmed** (NAK or ?): it was tried and didn't work, or we couldn't reach or check it. Not proof it's missing, but not verified.
- **not evaluated** (—): nobody has checked it. It's the founder's word only.

Treat only "confirmed" as verified. A result is a record of one evaluation on the date shown, not a guarantee.