Is sib-ingenieria.com.mx valid?

Domain: sib-ingenieria.com.mx

Valid: Yes, but should be blocked

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

Tested MX: sib-ingenieria.com.mx (23.227.38.66)

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No MX-pointer in DNS record. Using domain: sib-ingenieria.com.mx

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:

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Heuristics: T2b

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