Is cos.net valid?

How to block cos.net invalid e-mail domain

Domain: cos.net

Valid: Yes, but should be blocked

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

Tested MX: cos.net (101.36.119.77)

No MX-pointer in DNS record. Using domain: cos.net

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:

Heuristics: SM1

 

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cos.net

Status: Somewhat suspicious

 

DOMAIN RISK: 45

 

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