Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 18:28:39 UTC · ↺ Refresh
MX Hostnames
- hco-com.mail.protection.outlook.com
MX Priorities
- hco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.26.1.241 (no PTR)
- 172.67.69.243 (no PTR)
- 104.26.0.241
- 2606:4700:20::681a:f1
- 2606:4700:20::681a:1f1
- 2606:4700:20::ac43:45f3
Mail Server IPs
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
kianchau.ns.cloudflare.com dns.cloudflare.com 2398860587 10000 2400 604800 1800
Primary NS (mname)
kianchau.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398860587
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kianchau.ns.cloudflare.com
sasha.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:3270549.spf05.hubspotemail.net include:spf-us.emailsignatures365.com include:spf.elasticemail.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- 15edcdd9d16fb01b281f65219a977025
- Foxit-domain-verification=9dfec32ad13b2ba68a39e65882535482
- MS=ms81929061
- google-site-verification=4tz8BG9pK-btimVkNvm94PODNuMqlfWa-TgTtUNH1C8
- hubspot-domain-verification=MDA2MTQ4OTUtNmRmZS00ZTBkLThkMDAtZjFkMjY3YmVlMmI5
- hubspot-domain-verification=ZDdkZjg5ZmEtMDg3MC00MDUwLThiZWQtY2U5M2FiZTMxOTY3
- include:3270549.spf05.hubspotemail.net
- SPFv=spf1 include:spf.protection.outlook.com include:3270549.spf05.hubspotemail.net include:spf-us.emailsignatures365.com include:spf.elasticemail.com -all
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