Domain Overview
DNS: ✓ 21h ago
Checker: ✓ 21h ago
grupo3r.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-01 22:50:12 UTC · ↺ Refresh
MX Hostnames
- mail.grupo3r.com.mx
MX Priorities
- mail.grupo3r.com.mx: 1
A / AAAA Records
- 76.223.105.230 ↩ a16e665f42988324c.awsglobalaccelerator.com
- 13.248.243.5 ↩ a16e665f42988324c.awsglobalaccelerator.com
Mail Server IPs
- 138.197.198.27 ↩ smtp03.treebes.com
SOA Record
Raw SOA
ns75.domaincontrol.com dns.jomax.net 2026052200 28800 7200 604800 600
Primary NS (mname)
ns75.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026052200
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns76.domaincontrol.com
ns75.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.em.secureserver.net a mx a:grupo3r.com.mx ip4:138.197.198.27 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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 include:spf.em.secureserver.net a mx a:grupo3r.com.mx ip4:138.197.198.27 -all
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