Is echo-mr.com valid?

Domain: echo-mr.com

Valid: Yes

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

Tested MX: alt2.aspmx.l.google.com (64.233.184.26)

Using MX pointer alt2.aspmx.l.google.com from DNS with priority: 30

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.

DO NOT SCRAPE THIS DATA, USE THE API

Raw API reason:

Heuristics: WM1

START USING FREE API