Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
seguroscastillo.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 12:44:28 UTC · ↺ Refresh
MX Hostnames
- mail.seguroscastillo.com.mx
MX Priorities
- mail.seguroscastillo.com.mx: 0
A / AAAA Records
- 50.18.217.93 ↩ ec2-50-18-217-93.us-west-1.compute.amazonaws.com
Mail Server IPs
- 195.250.27.155 ↩ pl4304.mex1.stableserver.net
SOA Record
Raw SOA
ns1.mysecurecloudhost.com null.suempresa.com 2026022407 3600 3600 3600 3600
Primary NS (mname)
ns1.mysecurecloudhost.com
Admin Email (rname)
null@suempresa.com
Serial
2026022407
Refresh
3600s
Retry
3600s
Expire
3600s
Minimum TTL
3600s
Nameservers (NS)
ns2.mysecurecloudhost.com
ns1.mysecurecloudhost.com
ns3.mysecurecloudhost.com
ns4.mysecurecloudhost.com
SPF Record
✓ Strict (-all)
v=spf1 a mx a:mgw.suantispam.com a:mx.suantispam.com a:kmxo.suantispam.com include:spf.antispamcloud.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx a:mgw.suantispam.com a:mx.suantispam.com a:kmxo.suantispam.com include:spf.antispamcloud.com -all
- DMARCv=DMARC1; p=none; rua=mailto:[email protected];
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