Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esyntax.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 23:08:22 UTC · ↺ Refresh
MX Hostnames
- mail.esyntax.com.mx
MX Priorities
- mail.esyntax.com.mx: 0
A / AAAA Records
- 172.67.191.92 (no PTR)
- 104.21.20.50 (no PTR)
- 2606:4700:3037::6815:1432 (no PTR)
- 2606:4700:3034::ac43:bf5c (no PTR)
Mail Server IPs
- 23.187.248.14 ↩ iah-s03.nixihost.com
SOA Record
Raw SOA
grace.ns.cloudflare.com dns.cloudflare.com 2398843779 10000 2400 604800 1800
Primary NS (mname)
grace.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398843779
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mack.ns.cloudflare.com
grace.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:23.187.248.14 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; pct=100; fo=1; rf=afrf; ri=86400; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: quarantine
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 ip4:23.187.248.14 include:spf.protection.outlook.com ~all
- google-site-verification=HZv6JxY0k1KpDboJrAfCMdJu_poPqmIUGgnPxfr5p4k
Full email verification for esyntax.com.mx
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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