Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
demobile.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 07:15:24 UTC · ↺ Refresh
MX Hostnames
- mg.w3fsec.com.br
MX Priorities
- mg.w3fsec.com.br: 5
A / AAAA Records
- 168.138.239.108 (no PTR)
Mail Server IPs
- 157.173.113.115 ↩ mg.w3fsec.com.br
SOA Record
Raw SOA
diva.ns.cloudflare.com dns.cloudflare.com 2402948388 10000 2400 604800 1800
Primary NS (mname)
diva.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2402948388
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
diva.ns.cloudflare.com
yew.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:100.48.24.89 ip6:2600:1f18:6a25:bb01:584b:3157:2aa9:13f9 include:amazonses.com include:spf.sendinblue.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._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- Sendinblue-code:de211ab95ed1d2d901afe1cccc24e4ff
- SPFv=spf1 mx ip4:100.48.24.89 ip6:2600:1f18:6a25:bb01:584b:3157:2aa9:13f9 include:amazonses.com include:spf.sendinblue.com -all
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