Is vollwert.onmicrosoft.com valid?

Domain: vollwert.onmicrosoft.com

Valid: Yes

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

Tested MX: vollwert.mail.protection.outlook.com (52.101.170.1)

Using MX pointer vollwert.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.

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Raw API reason:

Heuristics: WM1

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