castores.com.mx

Valid Email Server
Domain Lookup › castores.com.mx

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
castores.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 12:46:50 UTC · ↺ Refresh

MX Hostnames

  • fortimail.castores.com.mx

MX Priorities

  • fortimail.castores.com.mx: 10

A / AAAA Records

  • 189.206.4.72 ↩ static-189-206-4-72.alestra.net.mx

Mail Server IPs

  • 158.69.36.20 ↩ mail3.castores.tcp.com.mx

SOA Record

Raw SOA ns1-01.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-01.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns4-01.azure-dns.info
ns1-01.azure-dns.com
ns2-01.azure-dns.net
ns3-01.azure-dns.org

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:158.69.36.20 ip4:158.69.36.21 ip4:158.69.36.24 ip4:201.144.49.240/28 include:spf.gbredes.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
selector1._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

10 records
  • MS=34780FAF75043BC80D0C2BC9329F4AE6E4EBAEEE
  • MS=ms35866140
  • _el50zlriadeof8eigrlivrhzhxz4eel
  • 13.03.2025
  • google-site-verification=fwh-rzf4MKiXQ2CdxwNrTKwl8WSKgivT1GgPl9S_xlw
  • asv=c8ab77a3c72be9a7fabbaa9f5f5a7de9
  • fortinet-fortiphish-site-verification=EUWBUixPDGRyjmwRtiF4QV
  • _8d7w27avr13mf30sxl0maa6g8pueb7q
  • 539psn3rjicvif47qa7qbs6qj
  • SPFv=spf1 mx ip4:158.69.36.20 ip4:158.69.36.21 ip4:158.69.36.24 ip4:201.144.49.240/28 include:spf.gbredes.com -all
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