inbox.flexperts.dev is a disposable email domain

inbox.flexperts.dev is a disposable temp email domain from mailsac.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": "inbox.flexperts.dev",
    "base_domain": "flexperts.dev",
    "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": true,
    "is_web_hosting_email": false,
    "is_self_hosted": false,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "in.mailsac.com",
    "mx_ip": "34.214.85.62",
    "mx_info": "Found in.mailsac.com",
    "mx_fallback": false,
    "mx_hosts": [
        "in.mailsac.com",
        "alt.mailsac.com"
    ],
    "mx_ips": [
        "34.214.85.62",
        "54.186.130.2"
    ],
    "mx_priorities": {
        "in.mailsac.com": 1,
        "alt.mailsac.com": 5
    },
    "email_provider": "mailsac.com",
    "disposable_provider": "mailsac.com",
    "possible_typo": [],
    "domain_age_days": null,
    "domain_created_at": null,
    "block_status_changed_at": "2026-04-13T08:20:07+00:00"
}