tnw.de

Valid Email Server
Domain Lookup › tnw.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tnw.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 23:04:28 UTC · ↺ Refresh

MX Hostnames

  • tnw-de.mail.protection.outlook.com

MX Priorities

  • tnw-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.81 ↩ 217-160-0-81.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::25c ↩ 2001-08d8-100f-f000-0000-0000-0000-025c.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com

SOA Record

Raw SOA ns1086.ui-dns.org hostmaster.1und1.com 2017060189 28800 7200 604800 600
Primary NS (mname)
ns1086.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060189
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1082.ui-dns.de
ns1086.ui-dns.org
ns1126.ui-dns.biz
ns1088.ui-dns.com

SPF Record

✓ Strict (-all)
v=spf1 a a:mx2f32.netcup.net a:relay.yourmailgateway.de mx include:spf.protection.outlook.com include:spf.crsend.com include:_spf.webhosting.systems -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

1 record
  • SPFv=spf1 a a:mx2f32.netcup.net a:relay.yourmailgateway.de mx include:spf.protection.outlook.com include:spf.crsend.com include:_spf.webhosting.systems -all
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