swu.de

Valid Email Server
Domain Lookup › swu.de

Domain Overview

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

Checked via [email protected] · 2026-03-21 11:20:26 UTC · ↺ Refresh

MX Hostnames

  • mxrelay1.swu.de
  • mxrelay.swu.de
  • ntserver-2.swu.de
  • ntserver-1.swu.de

MX Priorities

  • ntserver-2.swu.de: 50
  • mxrelay1.swu.de: 110
  • mxrelay.swu.de: 100
  • ntserver-1.swu.de: 10

A / AAAA Records

  • 109.70.193.20 (no PTR)

Mail Server IPs

  • 109.70.193.4 ↩ ntserver-2.swu.de
  • 109.235.230.167 ↩ mxrelay1.swu.de
  • 109.235.230.166 ↩ mxrelay.swu.de
  • 109.70.193.3 ↩ ntserver-1.swu.de

SOA Record

Raw SOA ns1.swu.de ip.swu.de 2026031600 43200 7200 1209600 86400
Primary NS (mname)
ns1.swu.de
Admin Email (rname)
ip@swu.de
Serial
2026031600
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns2.swu.de
ns1.swu.de
ns4.swu.de
ns3.swu.de

SPF Record

✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com a:spf.cantamen.de include:spf.docuguide.com -all
📊 DNS lookups: 5/10
✓ 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

8 records
  • mgverify=d5c620a272abfb11ba1482e33ee94089428b6e35da369f073e45e16870c94607
  • SPFv=spf1 a mx include:spf.protection.outlook.com a:spf.cantamen.de include:spf.docuguide.com -all
  • facebook-domain-verification=p0qyaw4te26ol0nwl75rbp5xxsatz6
  • pY6H7O2s28+rOKEjv2bR66WP1VwJi8352kVlQw6l708Xiqv7um1bq4/X+dOcRqCerkhSjg2fHgfOytMmVSkyEQ==
  • apple-domain-verification=rC8Bo80aMrFDuZp3
  • MS=ms60074987
  • cSzXgMTOcP0x2hwCRu09INYKToLeS8Wzi4qCwr9fAJNYSuuI/CIOEBF7AWzF6erdrox0UEU1HzWTq3GfkO896Q==
  • miro-verification=5795881ae9eab6a989bf3d955f5b3f5ee68ad5f5
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