Is cesco.co.kr valid?

Domain: cesco.co.kr

Valid: Yes, but should be blocked

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

Tested MX: mail.cesco.co.kr (172.19.1.1)

Using MX pointer mail.cesco.co.kr from DNS with priority: 20

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:

Local or non-routable IP

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