Maeve

The domain gmx.com is valid, has proper DNS MX records (mx01.gmx.net), and is able to accept new email. However, gmx.com may be a suspicious domain because it is registered and hosted by a domain name registrar that is known to be used by phishing and malware organizations.

Additionally, gmx.com appears to be using a third-party email service that is not verified by Google. It is recommended that users do not send any sensitive information to gmx.com or any other domain hosted by the registrar registrar.