Is sizzo.org valid?

Domain: sizzo.org

Valid: Yes

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

Tested MX: sizzo.org.c2.mx1.ik2.com (66.37.25.72)

Using MX pointer sizzo.org.c2.mx1.ik2.com from DNS with priority: 5

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Block: No

You do not need to 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:

Heuristics: WM1

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