stadtwerke-bielefeld.de

Valid Email Server
Domain Lookup › stadtwerke-bielefeld.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
stadtwerke-bielefeld.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 11:02:49 UTC · ↺ Refresh

MX Hostnames

  • mail.fsp-bielefeld.de

MX Priorities

  • mail.fsp-bielefeld.de: 10

A / AAAA Records

  • 185.243.132.215 ↩ r33270.agenturserver.it
  • 2a03:2a00:1800:2::ac12:2b79 ↩ r33270.agenturserver.it

Mail Server IPs

  • 91.194.108.56 ↩ mail08.fsp-bielefeld.de
  • 91.194.108.54 ↩ mail06.fsp-bielefeld.de
  • 91.194.108.55 ↩ mail07.fsp-bielefeld.de

SOA Record

Raw SOA dns.biteldns.de hostmaster.bitel.de 2026040102 10800 3600 604800 38400
Primary NS (mname)
dns.biteldns.de
Admin Email (rname)
hostmaster@bitel.de
Serial
2026040102
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
38400s

Nameservers (NS)

elektron.biteldns.de
neutron.biteldns.de
proton.biteldns.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:77.75.206.151 include:fsp-bielefeld.de include:mailgun.org include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

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

10 records
  • google-site-verification=MZXbmqqJgN2maqFJ6nOz6s-9m_VUv-3uFYPpUdyCmX8
  • 25reports=a188e342860307b3ed4b405b
  • google-site-verification=6dxC0euk_Mt_WH_mezz22Ge7nRN6tdILqPuDXTkPaTo
  • google-site-verification=hBDgxoX500vNAOUDEL-tHsvhyCxeJ7u3BjtKSIsYeMw
  • SPFv=spf1 ip4:77.75.206.151 include:fsp-bielefeld.de include:mailgun.org include:spf.protection.outlook.com -all
  • amazonses:X6pssx++TbjLiAEuf25gsU2oLk1aHLYyA/p9bdTlIlU=
  • E652280673AF5C24C4AFC39157468A8AA70A2EAE06254CB05464EC408F757236
  • duo_sso_verification=DfHczEThxT1YXPBV5jaq9AisvERAisNawOrXBopLUHEWsIsDdFPKh754yPi7evRb
  • google-site-verification=HBZmbFG7oPz7JKwLtUwvEkXJ552fjTVSdpwiNargopI
  • MS=ms25483367
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