Is ci-sys.de valid?

How to block ci-sys.de invalid e-mail domain

Domain: ci-sys.de

Valid: No, should be blocked
This domain does not seem valid, and can probably not receive e-mail.

Tested MX: ci-sys.de (No MX pointer detected)

No MX-pointer in DNS record. Using domain: ci-sys.de

Block: Yes

You should 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:

Unable to get domain or MX pointer.

 

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ci-sys.de

Status: Invalid domain.

 

DOMAIN RISK: 45

 

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