Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ucc.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 21:07:57 UTC · ↺ Refresh
MX Hostnames
- mxa.mailgun.org
- ucc-edu-co.mail.protection.outlook.com
- mxb.mailgun.org
MX Priorities
- ucc-edu-co.mail.protection.outlook.com: 0
- mxb.mailgun.org: 10
- mxa.mailgun.org: 20
A / AAAA Records
- 104.26.6.211
- 172.67.73.55
- 104.26.7.211
- 2606:4700:20::681a:6d3
- 2606:4700:20::681a:7d3
- 2606:4700:20::ac43:4937
Mail Server IPs
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 34.149.236.64 ↩ 64.236.149.34.bc.googleusercontent.com
- 34.160.157.95 ↩ 95.157.160.34.bc.googleusercontent.com
SOA Record
Raw SOA
george.ns.cloudflare.com dns.cloudflare.com 2399793735 10000 2400 604800 1800
Primary NS (mname)
george.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399793735
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
martha.ns.cloudflare.com
george.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:192.0.2.1 ip4:179.50.78.35 include:46874403.spf10.hubspotemail.net include:mailgun.org include:admin.sigmamovil.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
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
19 records- MUx5HlEvS7EkwKUjtD9if+gGEicgP6FEz8AMRaCuxfo=
- d365mktkey=7TSec2KBEP3v12dlvTxnsrxwxK89NaLOhCRovX6eXO0x
- amazonses:MUx5HlEvS7EkwKUjtD9if+gGEicgP6FEz8AMRaCuxfo=
- O2PXP9ENRRGTLV5QOT4N5SHR6D1NGLSBCYR5DXIK
- facebook-domain-verification=j5rladf6j3hc415x9k6bp8wc6kbrhs
- google-site-verification=pA-kx4Ph2dnPzg3n-CGQI7ZnHtQSbgMgPcyBXznb_MI
- google-site-verification=2FzHmy82vRw8CCYqUvJwmaWB_wTjzwWsZlT7WtwlDxg
- google-site-verification=OWMgkeFfSEn2zoC-K523QaSGHI7lrLGELrDtEq8OcR0
- brevo-code:7be1c04216af3127723f099bed221f28
- SPFv=spf1 ip4:192.0.2.1 ip4:179.50.78.35 include:46874403.spf10.hubspotemail.net include:mailgun.org include:admin.sigmamovil.com include:spf.protection.outlook.com -all
- d365mktkey=Oo0zjJuq5IgQnSZhrnoRzx33S9VarrApXSsDx8C2siox
- google-gws-recovery-domain-verification=60388080
- google-gws-recovery-domain-verification=59485088
- MS=81B5957790338BC4918B0AE8C95D8C64CB2479DC
- https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/config-firewall-for-ad-domains-and-trusts
- jqzH5MMhYDldBq4Ywt1d8/ExYzYImvPhZqjKbwcom1yU+nw6/SC5/0M6lqstMylWGO54rpTE9/DLpp88komgzA==
- google-site-verification=SYJIoW85hmEYKOLXTWOAavGJpaV6viY8_v2XGFeq7KA
- d365mktkey=remJpzZkibU15v272gXfYRodSBcYnYtZCiwKmpW5814x
- sophos-domain-verification=bd866118b55767a5b696979a7a3cf00b73d048822aa90c36800e0876958b45af
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