Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
castelec.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 04:08:40 UTC · ↺ Refresh
MX Hostnames
- castelecinternacional.in.tmes.trendmicro.com
MX Priorities
- castelecinternacional.in.tmes.trendmicro.com: 1
A / AAAA Records
- 52.86.119.20 ↩ castelec.mx
Mail Server IPs
- 18.208.22.79 ↩ in.tmes.trendmicro.com
- 18.208.22.80 ↩ in.tmes.trendmicro.com
- 18.208.22.77 ↩ in.tmes.trendmicro.com
- 18.208.22.78 ↩ in.tmes.trendmicro.com
SOA Record
Raw SOA
ns-1441.awsdns-52.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1441.awsdns-52.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1605.awsdns-08.co.uk
ns-314.awsdns-39.com
ns-654.awsdns-17.net
ns-1441.awsdns-52.org
SPF Record
✓ Strict (-all)
v=spf1 mx include:_spf.google.com include:amazonses.com include:spf.tmes.trendmicro.com include:spf.sendinblue.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]!10m,mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m,mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
google._domainkey
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- facebook-domain-verification=d6i7tg1nqk6ikca7u5dt56v8ntmn0t
- google-site-verification=5aijczP-zp1M8eaZBW3fni3hzG8GHUa000bcH_8lt3Q
- google-site-verification=eAwOmQdi2yUGIdsZIjTYsnpL_q3xNbu41swr14-CpN8
- google-site-verification=p-tyMQUU9u8ri3k5takLH06s9PBKOv1XI5tBaZNy3UA
- SPFv=spf1 mx include:_spf.google.com include:amazonses.com include:spf.tmes.trendmicro.com include:spf.sendinblue.com -all
- MS=ms95509537
- Sendinblue-code:0141bf26447e37f76562d6c6cc8ba0ae
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