Is tfbnw.net valid?

Domain: tfbnw.net

Valid: Yes, but should be blocked

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

Tested MX: smtpin.vvv.facebook.com (69.171.251.251)

Using MX pointer smtpin.vvv.facebook.com from DNS with priority: 10

Block: Yes

You should block this domain for signups/registrations.

Disposable: Yes

This looks like a temporary/disposable e-mail domain.

Detection method: Advanced heuristics

This domain was blocked heuristically. Unknown domains are automatically analyzed and tagged with our advanced algorithms.

Raw API reason:

Blacklisted

START USING FREE API