Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grupo-sef.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 22:09:15 UTC · ↺ Refresh
MX Hostnames
- grupo-sef.com
MX Priorities
- grupo-sef.com: 0
A / AAAA Records
- 45.63.104.72 ↩ espacios.criticalserver.net
Mail Server IPs
- 45.63.104.72 ↩ espacios.criticalserver.net
SOA Record
Raw SOA
ns1.criticalserver.net alertas.espaciosmail.com 2026022701 3600 1800 1209600 86400
Primary NS (mname)
ns1.criticalserver.net
Admin Email (rname)
alertas@espaciosmail.com
Serial
2026022701
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.criticalserver.net
ns1.criticalserver.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:45.63.104.72 ip4:45.32.206.83 +a +mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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
1 record- SPFv=spf1 ip4:45.63.104.72 ip4:45.32.206.83 +a +mx ~all
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