Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sbi-omaha.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 22:52:20 UTC · ↺ Refresh
MX Hostnames
- sbiomaha-com0i.mail.protection.outlook.com
MX Priorities
- sbiomaha-com0i.mail.protection.outlook.com: 0
A / AAAA Records
- 52.0.243.35 ↩ ec2-52-0-243-35.compute-1.amazonaws.com
Mail Server IPs
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns19.worldnic.com namehost.worldnic.com 125093011 10800 3600 604800 3600
Primary NS (mname)
ns19.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125093011
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns20.worldnic.com
ns19.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.37.255.30 ip4:64.253.184.38 include:spf.protection.outlook.com include:relay.bswift.com include:242611905.spf07.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
8 records- dkf8g6bonv7h3aq1546ob0iqr2
- apple-domain-verification=TGZ1G3oZwIcR8uoF
- c6j42epti8h5b0j4hbqna341qi
- gjstibrpv5m9hgv0flmpo78s5j
- SPFv=spf1 ip4:66.37.255.30 ip4:64.253.184.38 include:spf.protection.outlook.com include:relay.bswift.com include:242611905.spf07.hubspotemail.net -all
- 1MaUvKIkhkGaNIAkpEvnHbQzJajtQdFAGjdVffclf/ARqssk5ejhPyM1/EsnUACrM+/ZjmH+Bn+iuzJo9TaK+Q==
- 79i5ft01digt840n39g9coodms
- 728a2c0abe6493a0a4e459186f894851d5e6dbdb7ee2986207153172410451b4
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