Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
it2b.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 17:20:50 UTC · ↺ Refresh
MX Hostnames
- mx01.it2b.com.br
MX Priorities
- mx01.it2b.com.br: 5
A / AAAA Records
- 200.150.210.46 ↩ host46.it2b.com.br
Mail Server IPs
- 200.150.210.45 ↩ mx01.it2b.com.br
SOA Record
Raw SOA
ns1.it2b.com.br root.it2b.com.br 2026020520 3600 900 1209600 3600
Primary NS (mname)
ns1.it2b.com.br
Admin Email (rname)
root@it2b.com.br
Serial
2026020520
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.it2b.com.br
ns1.it2b.com.br
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:200.150.210.45/32 ip4:200.150.208.16/32 ip4:200.150.216.19/32 ip4:200.150.210.33/32 ip4:200.150.210.32/32 ip4:200.150.208.26/32 include:_spf.rdstation.com.br include:sendgrid.net include:spf.protection.outlook.com include:servers.mcsv.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- 3d9jfet2iou5rrs79msbg2eipt
- MS=ms40257852
- a18nloup1regtihtq7a592hdtk
- 0UWg301vLSeO1nTsSp0pLRkO8JmrkKR_YHtkZK8HDig
- 3nsshgaunq15mrtegg9n2cfpdh
- SPFv=spf1 ip4:200.150.210.45/32 ip4:200.150.208.16/32 ip4:200.150.216.19/32 ip4:200.150.210.33/32 ip4:200.150.210.32/32 ip4:200.150.208.26/32 include:_spf.rdstation.com.br include:sendgrid.net include:spf.protection.outlook.com include:servers.mcsv.net ~all
Full email verification for it2b.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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