h-mersmeyer.de

Valid Email Server
Domain Lookup › h-mersmeyer.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
h-mersmeyer.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 21:02:36 UTC · ↺ Refresh

MX Hostnames

  • hmersmeyer-de0c.mail.protection.outlook.com

MX Priorities

  • hmersmeyer-de0c.mail.protection.outlook.com: 10

A / AAAA Records

  • 185.58.213.31 (no PTR)

Mail Server IPs

  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com

SOA Record

Raw SOA ns3.etn.systems lm.contsystems.com 2025063001 10800 3600 1209600 10800
Primary NS (mname)
ns3.etn.systems
Admin Email (rname)
lm@contsystems.com
Serial
2025063001
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s

Nameservers (NS)

ns3.etn.systems
ns1.etn.systems
ns2.etn.systems

SPF Record

✓ Strict (-all)
v=spf1 a a:mx.etn.systems include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 a a:mx.etn.systems include:spf.protection.outlook.com -all
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