Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
udem.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 08:26:20 UTC · ↺ Refresh
MX Hostnames
- udem-edu-co.mail.protection.outlook.com
MX Priorities
- udem-edu-co.mail.protection.outlook.com: 10
A / AAAA Records
- 3.223.71.114 ↩ ec2-3-223-71-114.compute-1.amazonaws.com
Mail Server IPs
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
dns01.udem.edu.co evgomez.udem.edu.co 2026031201 14400 3600 1209600 600
Primary NS (mname)
dns01.udem.edu.co
Admin Email (rname)
evgomez@udem.edu.co
Serial
2026031201
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
dns02.udem.edu.co
ns2.he.net
ns5.he.net
dns01.udem.edu.co
ns3.he.net
ns4.he.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:200.34.171.8/32 ip4:200.34.171.31/32 ip4:200.34.171.32/32 ip4:200.34.171.33/32 ip4:200.34.171.34/32 ip4:200.34.171.19/32 ip4:200.34.171.26/32 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
1 record- SPFv=spf1 ip4:200.34.171.8/32 ip4:200.34.171.31/32 ip4:200.34.171.32/32 ip4:200.34.171.33/32 ip4:200.34.171.34/32 ip4:200.34.171.19/32 ip4:200.34.171.26/32 include:spf.protection.outlook.com -all
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