Is s2-inc.jp valid?

Domain: s2-inc.jp

Valid: Yes

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

Tested MX: mail1005.onamae.ne.jp (160.251.148.43)

Using MX pointer mail1005.onamae.ne.jp from DNS with priority: 10

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.

Raw API reason:

Heuristics: WM1

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