Is mailbox.in.ua valid?

Domain: mailbox.in.ua

Valid: Yes, but should be blocked

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

Tested MX: mx.fex.plus (193.108.118.7)

DO NOT SCRAPE THIS DATA, USE THE API

Using MX pointer mx.fex.plus from DNS with priority: 1

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:

Heuristics x5

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