Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
herlockermechanical.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 23:26:17 UTC · ↺ Refresh
MX Hostnames
- herlockermechanical-com.mail.protection.outlook.com
MX Priorities
- herlockermechanical-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.systemdns.com hostmaster.systemdns.com 1751977314 10800 3600 300 60
Primary NS (mname)
ns1.systemdns.com
Admin Email (rname)
hostmaster@systemdns.com
Serial
1751977314
Refresh
10800s
Retry
3600s
Expire
300s
Minimum TTL
60s
Nameservers (NS)
ns1.systemdns.com
ns2.systemdns.com
ns3.systemdns.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:209.235.67.36 include:spf.protection.outlook.com include:mailgun.org -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- SPFv=spf1 ip4:209.235.67.36 include:spf.protection.outlook.com include:mailgun.org -all
- apple-domain-verification=QCitCKP0iazdTlNH
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