Is startmail.com valid?

How to block startmail.com invalid e-mail domain

Domain: startmail.com

Valid: Yes, but should be blocked

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

Tested MX: mx1.startmail.com (145.131.90.133)

Using MX pointer mx1.startmail.com from DNS with priority: 10

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:
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Heuristics: T3

 

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startmail.com

Status: Looks like disposable / temporary

 

DOMAIN RISK: 99

 

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