Is optoonline.net valid?

Domain: optoonline.net

Valid: Yes, but should be blocked

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

Tested MX: mail.h-email.net (5.75.171.74)

Using MX pointer mail.h-email.net from DNS with priority: 5

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:

Anomalies detected

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