studenten.hs-bremerhaven.de

Valid Email Server
Domain Lookup › studenten.hs-bremerhaven.de

Domain Overview

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

Checked via [email protected] · 2026-03-25 02:52:30 UTC · ↺ Refresh

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MX Hostnames

  • a2981.mx.srv.dfn.de
  • b2981.mx.srv.dfn.de
  • c2981.mx.srv.dfn.de

MX Priorities

  • b2981.mx.srv.dfn.de: 10
  • c2981.mx.srv.dfn.de: 10
  • a2981.mx.srv.dfn.de: 10

A / AAAA Records

  • 192.109.135.28 ↩ smail.hs-bremerhaven.de

Mail Server IPs

  • 194.95.235.92 ↩ b2981.mx.srv.dfn.de
  • 194.95.239.92 ↩ c2981.mx.srv.dfn.de
  • 194.95.233.92 ↩ a2981.mx.srv.dfn.de

SOA Record

Raw SOA ns1.hs-bremerhaven.de fbehrens.hs-bremerhaven.de 2025070301 14400 3600 1209600 86400
Primary NS (mname)
ns1.hs-bremerhaven.de
Admin Email (rname)
fbehrens@hs-bremerhaven.de
Serial
2025070301
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns2.hs-bremerhaven.de
ns1.hs-bremerhaven.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a:smtp.hs-bremerhaven.de a:smtp3.hs-bremerhaven.de a:smtpgw.hs-bremerhaven.de a:studenten.hs-bremerhaven.de mx include:_spf.zimpel.de include:spf.protection.outlook.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=r;aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 736 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

1 record
  • SPFv=spf1 a:smtp.hs-bremerhaven.de a:smtp3.hs-bremerhaven.de a:smtpgw.hs-bremerhaven.de a:studenten.hs-bremerhaven.de mx include:_spf.zimpel.de include:spf.protection.outlook.com ~all
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