Is iol.pt valid?
iol.pt has elevated risk (60/100). Verify email domains with the free Check-Mail API.
iol.pt
iol.pt is a valid domain that should be allowed to do sign-ups and registrations. Based on our analysis, you should allow this domain.
Raw API JSON response:
{
"valid": true,
"block": false,
"domain": "iol.pt",
"base_domain": "iol.pt",
"text": "Suspicious",
"reason": "Some anomalies detected",
"risk": 60,
"is_disposable": false,
"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": "smtp-box-01.iol.pt",
"mx_ip": "193.126.240.185",
"mx_info": "Using MX pointer smtp-box-01.iol.pt from DNS with priority: 5",
"mx_fallback": false,
"mx_hosts": [
"smtp-box-01.iol.pt"
],
"mx_ips": [
"193.126.240.185"
],
"mx_priorities": {
"smtp-box-01.iol.pt": 5
},
"email_provider": null,
"disposable_provider": null,
"possible_typo": [],
"domain_age_days": null,
"domain_created_at": null,
"block_status_changed_at": "2026-03-22T14:11:13+00:00"
}
iol.pt
Status: Suspicious
RISK
MEDIUM
Domain risk: 60
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Technical Details for iol.pt
Risk Score
60 / 100
MX Host
smtp-box-01.iol.pt
Last updated: Mar 22, 2026
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