Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uexternado.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 15:35:46 UTC · ↺ Refresh
MX Hostnames
- uexternado-edu-co.mail.protection.outlook.com
MX Priorities
- uexternado-edu-co.mail.protection.outlook.com: 0
A / AAAA Records
- 186.190.254.42 ↩ 186-190-254-42.e-commercepark.com
Mail Server IPs
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.columbus-networks.com co-ip.cwc.com 2019012348 3600 3600 604800 3600
Primary NS (mname)
ns20.columbus-networks.com
Admin Email (rname)
co-ip@cwc.com
Serial
2019012348
Refresh
3600s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns20.columbus-networks.com
ns22.columbus-networks.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:190.7.110.121 ip4:3.235.210.147 ip4:54.161.24.66 ip4:190.7.110.120 ip4:200.31.87.2 ip4:52.45.50.190 ip4:52.42.20.3 ip4:52.31.29.196 ip4:52.60.142.64 ip4:54.252.197.88 ip4:52.76.190.252 ip4:34.133.54.186 include:_spf.embluemail.com include:spf.protection.outlook.com include:spf.elluciancloud.com include:_spf.qp-mail.com include:spf.mailjet.com include:_spf.rdstation.com.br include:sendgrid.net ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=50; ruf=mailto:[email protected]; rua=mailto:[email protected]; adkim=r; aspf=r; rf=afrf
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._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
7 records- brevo-code:5b15b716f419039c1d521ba9a5f77c4d
- google-site-verification=692Zs9hYJIWHsz7-g-gQPZSWY8KSzPq_5vQG6f_908w
- SPFv=spf1 ip4:190.7.110.121 ip4:3.235.210.147 ip4:54.161.24.66 ip4:190.7.110.120 ip4:200.31.87.2 ip4:52.45.50.190 ip4:52.42.20.3 ip4:52.31.29.196 ip4:52.60.142.64 ip4:54.252.197.88 ip4:52.76.190.252 ip4:34.133.54.186 include:_spf.embluemail.com include:spf.protection.outlook.com include:spf.elluciancloud.com include:_spf.qp-mail.com include:spf.mailjet.com include:_spf.rdstation.com.br include:sendgrid.net ~all
- cisco-ci-domain-verification=6df8b3fbedb94fad31fe6e8be6b89e9ad69a6fd77d9da0b900f0a1ad23eaeb47
- 81tq63pwf1s3k1zrv9n3ycrvw54s09vr
- google-site-verification=NmCwrQXXX52StFaY-TXkO46dxGIX266ionja3zRLCO0
- dc448r20siuusohfienaj0cfnb
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