Is kosir.ca valid?

Domain: kosir.ca

Valid: Yes

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

Tested MX: kosir-ca.mail.protection.outlook.com (52.101.192.0)

Using MX pointer kosir-ca.mail.protection.outlook.com from DNS with priority: 0

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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:

Some anomalies detected

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