Is ffff.com valid?

Domain: ffff.com

Valid: Yes, but should be blocked

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

Tested MX: mail.ffff.com (162.241.224.20)

DO NOT SCRAPE THIS DATA, USE THE API

Using MX pointer mail.ffff.com from DNS with priority: 0

Block: Yes

You should block this domain for signups/registrations.

Disposable: No

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

Raw API reason:

Heuristics: T2

START USING FREE API