Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
usbmed.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 11:23:33 UTC · ↺ Refresh
MX Hostnames
- usbmed-edu-co.mail.protection.outlook.com
MX Priorities
- usbmed-edu-co.mail.protection.outlook.com: 0
A / AAAA Records
- 137.184.205.14 (no PTR)
Mail Server IPs
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.columbus-networks.com co-ip.cwc.com 2026060135 3600 600 1209600 3600
Primary NS (mname)
ns20.columbus-networks.com
Admin Email (rname)
co-ip@cwc.com
Serial
2026060135
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
juno.impsat.net.co
ns1.impsat.net.co
ns20.columbus-networks.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:37.10.70.162 include:spf.masterbase.com include:spf.protection.outlook.com include:_spf.elasticemail.com -all
📊 DNS lookups: 3/10
✓ 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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
5 records- google-site-verification=Px6HdzNj9pXxvShmim1pSJ7a_F6p1wGQ16yaP4bCp8U
- atlassian-domain-verification=avQGj6tiCGh16f0plxV/0X9y3J20anmSZl4qPx/vn8UteTaLOa/zHm9GaIK6G2UK
- SPFv=spf1 ip4:37.10.70.162 include:spf.masterbase.com include:spf.protection.outlook.com include:_spf.elasticemail.com -all
- _2rzuaenh1q7ixn20gsz83jk7o9unnc7
- ZOOM_verify_2VizSdURQgOgwiyd5ozZ2Q
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