# E-mail addresses you can trust: a send gate and a nightly check

> Enydea now scores every contact address, checks lists overnight, learns from bounces and can hold back unconfirmed addresses from a campaign send.

Source: https://enydea.com/en/blog/email-address-accuracy · Published 2026-10-05

## What changed

- **Seen beats guessed.** An address seen in real mail or on a company's own website now counts for more than an address built from a name pattern. A guessed address that turns out wrong is replaced by the published one, and the old one stays in the contact's history.
- **Checks that mean something.** Some domains accept mail for any address, so a mailbox check there proves nothing. Enydea detects those domains and no longer counts such an answer as confirmation.
- **Bounces teach.** A bounce that says the mailbox does not exist marks the contact undeliverable and makes Enydea more careful with other guessed addresses at that company.
- **A nightly run.** Every night Enydea catches up on bounces, checks new recipient domains, looks for published addresses where it only has guesses, and scores the contacts again.
- **A send gate.** Before a campaign is sent, Enydea checks the contact addresses on the list. By default it only reports, in the send notification, how many addresses it would hold back. A company admin can ask the AI Assistant to switch it to enforce, which leaves unconfirmed and undeliverable addresses out of that send while keeping them on the list.

## How to use it

Most of this runs without a screen: you see a badge on contacts and a line in the send notification, and you ask the AI Assistant for checks and settings. [Email address verification and the send gate](https://enydea.com/en/documentation/email-address-verification.md) explains the levels, checks and gate, and the [tutorial](https://enydea.com/en/documentation/tutorial-clean-a-mailing-list.md) checks a mailing list before a campaign.

## How to use it

- [Email address verification and the send gate](https://enydea.com/en/documentation/email-address-verification.md)
- [Tutorial: clean a mailing list before a campaign](https://enydea.com/en/documentation/tutorial-clean-a-mailing-list.md)
- [Mailings and campaigns: design, schedule and send bulk email](https://enydea.com/en/documentation/mailings-and-campaigns.md)