Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ces.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 15:00:38 UTC · ↺ Refresh
MX Hostnames
- ces-edu-co.mail.protection.outlook.com
MX Priorities
- ces-edu-co.mail.protection.outlook.com: 0
A / AAAA Records
- 179.1.75.185 (no PTR)
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
isaac.ns.cloudflare.com dns.cloudflare.com 2398724488 10000 2400 604800 1800
Primary NS (mname)
isaac.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398724488
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
leah.ns.cloudflare.com
isaac.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:179.1.117.29 ip4:179.1.94.224 ip4:138.121.12.30 ip4:138.121.12.19 ip4:190.145.112.94 include:musvc.com include:spf.protection.outlook.com include:_spf.smtp.com include:emsd1.com include:relay.mailchannels.net include:spfa.cpmails.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
8 records- 88AR9TVCH6NNCI9183P50R06N7
- docusign=4b11b4f5-0979-411b-8690-73de5706478a
- google-site-verification=OhzSeG0lX10DGpQH8ev77uNiqKJaAz7eKknaGfszUYo
- have-i-been-pwned-verification=dweb_hhe4lflnm0x8rcr3rq7e0wrm
- kc86rfo4dmbu2b9jhhv7k9vdqq
- ljj2gfqoarg35oeft3s0m2k5a4
- qq59t6st9nd0kl2toh5p23v28l
- SPFv=spf1 ip4:179.1.117.29 ip4:179.1.94.224 ip4:138.121.12.30 ip4:138.121.12.19 ip4:190.145.112.94 include:musvc.com include:spf.protection.outlook.com include:_spf.smtp.com include:emsd1.com include:relay.mailchannels.net include:spfa.cpmails.com -all
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