crt.org.mx

Valid Email Server
Domain Lookup › crt.org.mx

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
crt.org.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 21:46:52 UTC · ↺ Refresh

MX Hostnames

  • fortimail4.assetel.com
  • fortimail.assetel.com

MX Priorities

  • fortimail4.assetel.com: 20
  • fortimail.assetel.com: 10

A / AAAA Records

  • 45.190.240.139 ↩ 45-190-240-139-static.assetel.mx

Mail Server IPs

  • 45.190.240.38 ↩ fortimail4.assetel.com
  • 201.151.150.5 ↩ fortimail.assetel.com

SOA Record

Raw SOA ns-344.awsdns-43.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-344.awsdns-43.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-829.awsdns-39.net
ns-1327.awsdns-37.org
ns-1947.awsdns-51.co.uk
ns-344.awsdns-43.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx ip4:45.190.240.180 ip4:201.151.150.5 ip4:45.190.240.38 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;pct=50;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
⚠ Policy applies to 50% of failing messages only

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

1 record
  • SPFv=spf1 a mx ip4:45.190.240.180 ip4:201.151.150.5 ip4:45.190.240.38 ~all
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