rt35v5bw.mailosaur.net is a disposable email domain

rt35v5bw.mailosaur.net is a disposable temp email domain from mailosaur.com 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": "rt35v5bw.mailosaur.net",
    "base_domain": "mailosaur.net",
    "text": "Disposable or temporary email domain",
    "reason": "disposable",
    "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": true,
    "is_web_hosting_email": false,
    "is_self_hosted": false,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "smtp-in1.mailosaur.net",
    "mx_ip": "34.36.169.126",
    "mx_info": "Using MX pointer smtp-in1.mailosaur.net from DNS with priority: 10",
    "mx_fallback": false,
    "mx_hosts": [
        "smtp-in1.mailosaur.net",
        "smtp-in2.mailosaur.net"
    ],
    "mx_ips": [
        "34.36.169.126",
        "136.81.164.51"
    ],
    "mx_priorities": {
        "smtp-in1.mailosaur.net": 10,
        "smtp-in2.mailosaur.net": 20
    },
    "email_provider": "mailosaur.com",
    "disposable_provider": "mailosaur.com",
    "possible_typo": [],
    "domain_age_days": null,
    "domain_created_at": null,
    "block_status_changed_at": "2026-07-05T22:51:01+00:00"
}