Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coltanques.com.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 04:50:44 UTC · ↺ Refresh
MX Hostnames
- coltanques-com-co.mail.protection.outlook.com
MX Priorities
- coltanques-com-co.mail.protection.outlook.com: 0
A / AAAA Records
- 181.79.7.5 (no PTR)
Mail Server IPs
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
12 records- pvr156p0s2u77itbjgr288c0nj
- ns1.sendinblue.com
- ns2.sendinblue.com
- d1adl2meek7iufo8lr8696bkr6
- mscid=vSKLVJ+/xSyRmmnDW0V5Q6MPZgNFl8Ydb7aO+K4ZuqLDfXXzTxrcB+etVik5FyeFAUuvOLDguRYuO3VjraHDxg==
- SPFv=spf1 include:spf.protection.outlook.com -all
- 181.79.7.5
- brevo-code:ab71ad74856729f07afb276982813844
- 6oup3vo347gaj46lgfucq6dhkh
- kp8kh2jffogulin3a8qhpttub9
- 287b594e962a4eb1bf21598bb4860017
- sophos-domain-verification=951e673b7a8ce779207b336a09c11ccd993a1d3cc34ef202d08413bc01ea0aa9
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for coltanques.com.co
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits