isein.com.co

Valid Email Server
Domain Lookup › isein.com.co

Domain Overview

DNS: ✓ 9h ago Checker: ✓ 9h ago
isein.com.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-01 06:24:17 UTC · ↺ Refresh

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MX Hostnames

  • isein-com-co.mail.protection.outlook.com

MX Priorities

  • isein-com-co.mail.protection.outlook.com: 0

A / AAAA Records

  • 192.99.84.42 ↩ hazel.dongee.com

Mail Server IPs

  • 52.101.9.17 (no PTR)
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dongee.com root.hazel.dongee.com 2026060701 3600 1800 1209600 86400
Primary NS (mname)
ns1.dongee.com
Admin Email (rname)
root@hazel.dongee.com
Serial
2026060701
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns3.dongee.com
ns2.dongee.com
ns1.dongee.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms43641309
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