Is devnull.facebook.com valid?

Domain: devnull.facebook.com

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: No

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

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Raw API reason:

DO NOT SCRAPE THIS DATA, USE THE API

Blacklisted

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