online-mailer.com is a disposable email domain

online-mailer.com is a disposable temp email domain from tempmailer.net that provides throwaway email addresses and should be blocked. These temporary addresses are frequently exploited to bypass verification systems and create fake accounts.

Raw API JSON response:

{
    "valid": true,
    "block": true,
    "domain": "online-mailer.com",
    "base_domain": "online-mailer.com",
    "text": "Disposable \/ temporary domain",
    "reason": "Heuristics x1",
    "risk": 91,
    "is_disposable": true,
    "is_email_forwarder": false,
    "is_public_free": false,
    "is_public_premium": false,
    "is_business_provider": false,
    "is_isp_email": false,
    "is_email_api": false,
    "is_web_hosting_email": false,
    "is_self_hosted": true,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "mail.online-mailer.com",
    "mx_ip": "139.162.159.233",
    "mx_info": "Using MX pointer mail.online-mailer.com from DNS with priority: 10",
    "mx_fallback": false,
    "mx_hosts": [
        "mail.online-mailer.com"
    ],
    "mx_ips": [
        "139.162.159.233"
    ],
    "mx_priorities": {
        "mail.online-mailer.com": 10
    },
    "email_provider": null,
    "disposable_provider": "tempmailer.net",
    "possible_typo": [],
    "domain_age_days": 133,
    "domain_created_at": "2026-02-01T00:00:00+00:00",
    "block_status_changed_at": "2026-04-13T08:32:47+00:00"
}