Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sterling-group.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 08:09:34 UTC · ↺ Refresh
MX Hostnames
- sterlinggroup-com02b.mail.protection.outlook.com
MX Priorities
- sterlinggroup-com02b.mail.protection.outlook.com: 10
A / AAAA Records
- 149.28.240.188 ↩ 149.28.240.188.vultrusercontent.com
Mail Server IPs
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns53.worldnic.com namehost.worldnic.com 126012614 10800 3600 604800 3600
Primary NS (mname)
ns53.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126012614
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns54.worldnic.com
ns53.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:35.174.145.124 ip4:23.30.71.149 ip4:66.196.209.246 ip4:69.7.190.9 ip4:63.251.41.14 include:spf.protection.outlook.com include:spfhost.messageprovider.com include:spf-fis-ob.fisglobal.com include:spf-nonfis-ob.fisglobal.com include:_spf.intacct.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ 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: 392 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- openai-domain-verification=dv-MH13V6Wka3AFnCbSRt7RUGuA
- dropbox-domain-verification=2voxpp6hei5g
- intacct-esk=B9864EA86288125CE0539C220D0AEE7E
- duo_sso_verification=EVXIHA793mkvQwHCdqWri5uBDaMDLUro3WeeUMgAY9Yvr65xprqj2t4kqL8giMvR
- google-site-verification=zw2c4mQ-QevqVerYTHjQf6hvhS9fwCCmKqIigqXBA5M
- SPFv=spf1 ip4:35.174.145.124 ip4:23.30.71.149 ip4:66.196.209.246 ip4:69.7.190.9 ip4:63.251.41.14 include:spf.protection.outlook.com include:spfhost.messageprovider.com include:spf-fis-ob.fisglobal.com include:spf-nonfis-ob.fisglobal.com include:_spf.intacct.com -all
- MS=ms70967599
- intacct-esk=B081E27CAA9A971FE0539A220D0A70D6
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