sealtelecom.com.co

Valid Email Server
Domain Lookup › sealtelecom.com.co

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
sealtelecom.com.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-01 20:05:14 UTC · ↺ Refresh

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MX Hostnames

  • sealtelecom-com-co.mail.protection.outlook.com

MX Priorities

  • sealtelecom-com-co.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.7.77 (no PTR)
  • 172.67.135.207 (no PTR)
  • 2606:4700:3033::ac43:87cf (no PTR)
  • 2606:4700:3033::6815:74d (no PTR)

Mail Server IPs

  • 52.101.9.17 (no PTR)
  • 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA jack.ns.cloudflare.com dns.cloudflare.com 2407735502 10000 2400 604800 1800
Primary NS (mname)
jack.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2407735502
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

lana.ns.cloudflare.com
jack.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • smartsheet-site-validation=alpVuOw7TM9sXxJ_M-xGmYb2jD3aURWd
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms31925003
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