Is emissioncritical.io valid?

Domain: emissioncritical.io

Valid: Yes

This domain is valid and should be able to receive e-mail.

Tested MX: emissioncritical-io.mail.protection.outlook.com (52.101.145.2)

USE THE API, DO NOT SCRAPE THIS DATA

Using MX pointer emissioncritical-io.mail.protection.outlook.com from DNS with priority: 0

DO NOT SCRAPE THIS DATA, USE THE API

Block: No

You do not need to block this domain for signups/registrations.

Disposable: No

This does not look like a temporary/disposable e-mail domain.

Raw API reason:

Heuristics: WM1

START USING FREE API