Is cleo.one valid?
cleo.one has elevated risk (50/100). Verify email domains with the free Check-Mail API.
cleo.one
cleo.one 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": "cleo.one",
"base_domain": "cleo.one",
"text": "Looks okay",
"reason": "none",
"risk": 50,
"is_disposable": false,
"is_email_forwarder": false,
"is_public_free": false,
"is_public_premium": false,
"is_business_provider": true,
"is_isp_email": false,
"is_email_api": false,
"is_web_hosting_email": false,
"is_self_hosted": false,
"is_parked": true,
"is_role_based_email": false,
"mx_host": "cleo-one.mail.protection.outlook.com",
"mx_ip": "52.101.73.120",
"mx_info": "Using MX pointer cleo-one.mail.protection.outlook.com from DNS with priority: 0",
"mx_fallback": false,
"mx_hosts": [
"cleo-one.mail.protection.outlook.com"
],
"mx_ips": [
"52.101.73.120",
"52.101.209.31",
"52.101.68.12",
"52.101.91.162"
],
"mx_priorities": {
"cleo-one.mail.protection.outlook.com": 0
},
"email_provider": "Exchange Online",
"disposable_provider": null,
"possible_typo": [],
"domain_age_days": 3415,
"domain_created_at": "2017-07-10T00:00:00+00:00",
"block_status_changed_at": "2026-11-09T06:39:23+00:00"
}
cleo.one
Status: Looks okay
RISK
MEDIUM
Domain risk: 50
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Technical Details for cleo.one
Risk Score
50 / 100
MX Host
cleo-one.mail.protection.outlook.com
Email Provider
Exchange Online
Last updated: Nov 9, 2026
cleo.one Domain Age
cleo.one was registered on July 10, 2017 and is 9 years, 4 months old.
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