Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
b-s.com.ar
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 13:43:45 UTC · ↺ Refresh
MX Hostnames
- mail.b-s.com.ar
- mx1.b-s.com.ar
MX Priorities
- mx1.b-s.com.ar: 20
- mail.b-s.com.ar: 0
A / AAAA Records
- 200.58.101.200 ↩ 200.101.58.200.in-addr.arpa.hostmar.com
Mail Server IPs
- 200.58.122.206 ↩ mxbkp.hostmar.com
- 200.58.110.190 ↩ c167.dattaweb.com
- 2800:6c0:2::80 ↩ c167.dattaweb.com
SOA Record
Raw SOA
ns3.hostmar.com root.hostmar.com 2025060301 28800 7200 2000000 86400
Primary NS (mname)
ns3.hostmar.com
Admin Email (rname)
root@hostmar.com
Serial
2025060301
Refresh
28800s
Retry
7200s
Expire
2000000s
Minimum TTL
86400s
Nameservers (NS)
ns3.hostmar.com
ns4.hostmar.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.hostmar.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected] ; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.hostmar.com -all
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