Is nibox.ru valid?

Domain: nibox.ru

Valid: Yes, but should be blocked

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

Tested MX: mail.nibox.ru (185.173.94.221)

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Using MX pointer mail.nibox.ru 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: T1

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