Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thesterlinggrp.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 12:04:16 UTC · ↺ Refresh
MX Hostnames
- thesterlinggrp-com.mail.protection.outlook.com
MX Priorities
- thesterlinggrp-com.mail.protection.outlook.com: 10
A / AAAA Records
- 50.6.19.140 ↩ 50-6-19-140.unifiedlayer.com
Mail Server IPs
- 52.101.9.17 (no PTR)
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
udns1.ultradns.net jhiner.thesterlinggrp.com 2014111248 86400 7200 2419200 86400
Primary NS (mname)
udns1.ultradns.net
Admin Email (rname)
jhiner@thesterlinggrp.com
Serial
2014111248
Refresh
86400s
Retry
7200s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
bdns4.ultradns.net
udns1.ultradns.net
udns2.ultradns.net
bdns3.ultradns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net -all
📊 DNS lookups: 2/10
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
✓ 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
5 records- MS=ms30078874
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net -all
- google-site-verification=tNT2dLq9SRaHZfz8LJIR3kMfw84GV0c5x4Zb6c6v--4
- KxafU7eEvy8t1aGW7QVs5b5My2G2/ugJRyNsmPkNqW0+ErkYg39GnGU6MQUf1yxKOItZhVlsZu9gYx3ljCFmMg==
- MS=ms72098121
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