coltomex.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
coltomex.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 00:24:16 UTC · ↺ Refresh

MX Hostnames

  • mx01.hornetsecurity.com
  • mx03.hornetsecurity.com
  • mx04.hornetsecurity.com
  • coltomex-com.mail.protection.outlook.com
  • mx02.hornetsecurity.com

MX Priorities

  • mx03.hornetsecurity.com: 30
  • mx02.hornetsecurity.com: 20
  • coltomex-com.mail.protection.outlook.com: 50
  • mx04.hornetsecurity.com: 40
  • mx01.hornetsecurity.com: 10

A / AAAA Records

  • 201.163.237.6
  • 201.163.237.7

Mail Server IPs

  • 94.100.134.8 ↩ mx03.hornetsecurity.com
  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
  • 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
  • 94.100.136.7
  • 94.100.132.8

SOA Record

Raw SOA ns144.neubox.net root.svgt245.serverneubox.com.mx 2026040222 3600 1800 1209600 86400
Primary NS (mname)
ns144.neubox.net
Admin Email (rname)
root@svgt245.serverneubox.com.mx
Serial
2026040222
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns345.neubox.xyz
ns245.neubox.net
ns144.neubox.net
ns143.neubox.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:198.59.144.7 include:relay.mailchannels.net include:smtp.relay.serverneubox.com.mx ip4:198.59.144.16 ip4:174.136.25.55 +a +mx +include:spf.hornetsecurity.com +include:spf.protection.outlook.com +include:turbo-smtp.com +include:spf.mandrillapp.com -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;adkim=r;aspf=s;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
default._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 ip4:198.59.144.7 include:relay.mailchannels.net include:smtp.relay.serverneubox.com.mx ip4:198.59.144.16 ip4:174.136.25.55 +a +mx +include:spf.hornetsecurity.com +include:spf.protection.outlook.com +include:turbo-smtp.com +include:spf.mandrillapp.com -all
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