Is goodby.com valid?

goodby.com

goodby.com is an invalid domain that should be blocked from sign-ups or registrations. Based on our analysis, you should block this invalid domain. If a user is trying to sign-up using an e-mail on this domain, it's likely a typo, or a malicious attempt.

The best way to detect and block invalid email domains like goodby.com is to use the Check-Mail API, available for free, for all programming languages.

Raw API JSON response:

{
    "valid": false,
    "block": true,
    "disposable": false,
    "email_forwarder": false,
    "domain": "goodby.com",
    "text": "Invalid domain.",
    "reason": "Unable to get domain or MX pointer.",
    "risk": 15,
    "mx_host": null,
    "possible_typo": [],
    "mx_ip": "127.0.0.1",
    "mx_info": "Using MX pointer localhost from DNS with priority: 0",
    "last_changed_at": "2020-05-31T04:22:31+00:00"
}