Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iue.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 01:38:08 UTC · ↺ Refresh
MX Hostnames
- iue-edu-co.mail.protection.outlook.com
MX Priorities
- iue-edu-co.mail.protection.outlook.com: 10
A / AAAA Records
- 20.84.98.233 (no PTR)
Mail Server IPs
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.columbus-networks.com co-ip.cwc.com 1766754250 3600 600 1209600 3600
Primary NS (mname)
ns20.columbus-networks.com
Admin Email (rname)
co-ip@cwc.com
Serial
1766754250
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns20.columbus-networks.com
ns22.columbus-networks.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:185.42.20.20 ip4:185.42.20.22 ip4:185.42.20.23 ip4:185.42.20.21 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- v=msv1 t=e565e3e092df42a673ba79c2f0ff39
- Email-Marketing-domain-verification:b76a2264-0669-11f0-9866-005056bd5094
- SPFv=spf1 ip4:185.42.20.20 ip4:185.42.20.22 ip4:185.42.20.23 ip4:185.42.20.21 include:spf.protection.outlook.com ~all
- sophos-domain-verification=2437c0660287c8376e4a7eaae302071ee9bc9af4521cf9311d82e72b8ccde591
- v=msv1 t=2024369871
- google-site-verification=RD0e75VF6Tdzo_yUtqCYpeVLtqB3vMTXYeF8q0l1E84
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