cor-lab.uni-bielefeld.de

Valid Email Server
Domain Lookup › cor-lab.uni-bielefeld.de

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
cor-lab.uni-bielefeld.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-06 15:47:38 UTC · ↺ Refresh

MX Hostnames

  • mx-last.techfak.net
  • mx2.mail.techfak.net
  • mx-ext.mail.techfak.net
  • mx1.mail.techfak.net

MX Priorities

  • mx1.mail.techfak.net: 100
  • mx-last.techfak.net: 300
  • mx-ext.mail.techfak.net: 200
  • mx2.mail.techfak.net: 100

A / AAAA Records

  • 129.70.142.93 ↩ www.TechFak.Uni-Bielefeld.DE
  • 2001:638:504:2040::93 ↩ www.TechFak.Uni-Bielefeld.DE

Mail Server IPs

  • 129.70.137.2 ↩ mx1.Mail.TechFak.NET
  • 2001:638:504:2014::2 ↩ mx1.Mail.TechFak.NET
  • 129.70.136.156 ↩ mx-last.TechFak.NET
  • 78.47.240.37 ↩ mx-ext.mail.techfak.net
  • 2a01:4f8:c17:2412::2 ↩ mx-ext.mail.techfak.net
  • 129.70.137.3 ↩ mx2.Mail.TechFak.NET
  • 2001:638:504:2014::3 ↩ mx2.Mail.TechFak.NET

SOA Record

Raw SOA dns.techfak.uni-bielefeld.de hostmaster.techfak.uni-bielefeld.de 2026040601 10800 1800 3600000 3600
Primary NS (mname)
dns.techfak.uni-bielefeld.de
Admin Email (rname)
hostmaster@techfak.uni-bielefeld.de
Serial
2026040601
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

auth-ext0.dns.techfak.net
auth1.dns.techfak.uni-bielefeld.de
auth0.dns.techfak.uni-bielefeld.de
dns1.belwue.de
dns3.belwue.de

SPF Record

✓ Soft Fail (~all)
v=spf1 redirect=_spf.techfak.net
📊 DNS lookups: 1/10

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 redirect=_spf.techfak.net
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