Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
b2blanguages.com.br
Yes
✓ Yes
Zoho
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 01:29:33 UTC · ↺ Refresh
MX Hostnames
- mx.zoho.com
- mx2.zoho.com
- mx3.zoho.com
MX Priorities
- mx.zoho.com: 10
- mx2.zoho.com: 20
- mx3.zoho.com: 50
A / AAAA Records
- 185.199.110.153 ↩ cdn-185-199-110-153.github.com
- 185.199.109.153 ↩ cdn-185-199-109-153.github.com
- 185.199.108.153 ↩ cdn-185-199-108-153.github.com
- 185.199.111.153 ↩ cdn-185-199-111-153.github.com
Mail Server IPs
- 136.143.191.44 ↩ mx3.zohomail.com
- 136.143.183.44 ↩ mx3.zohomail.com
SOA Record
Raw SOA
b.sec.dns.br hostmaster.registro.br 2026069000 86400 900 604800 900
Primary NS (mname)
b.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026069000
Refresh
86400s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
c.sec.dns.br
b.sec.dns.br
SPF Record
✓ Soft Fail (~all)
v=spf1 include:zohomail.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
2 records- zoho-verification=zb10475339.zmverify.zoho.com
- SPFv=spf1 include:zohomail.com ~all
Full email verification for b2blanguages.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits