verwaltung.uni-bonn.de

Valid Email Server
Domain Lookup › verwaltung.uni-bonn.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
verwaltung.uni-bonn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 21:35:41 UTC · ↺ Refresh

MX Hostnames

  • esa2.rhrz.uni-bonn.de
  • esa1.rhrz.uni-bonn.de
  • esa3.rhrz.uni-bonn.de

MX Priorities

  • esa1.rhrz.uni-bonn.de: 10
  • esa2.rhrz.uni-bonn.de: 10
  • esa3.rhrz.uni-bonn.de: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 131.220.18.241 ↩ esa1.rhrz.uni-bonn.de
  • 2a00:5ba0::102c:0:0:0:a ↩ esa1.rhrz.uni-bonn.de
  • 131.220.18.242 ↩ esa2.rhrz.uni-bonn.de
  • 2a00:5ba0::102d:0:0:0:b ↩ esa2.rhrz.uni-bonn.de
  • 131.220.18.243 ↩ esa3.rhrz.uni-bonn.de
  • 2a00:5ba0::102e:0:0:0:c ↩ esa3.rhrz.uni-bonn.de

SOA Record

Raw SOA dns1.uni-bonn.de dnsadmin.uni-bonn.de 759573190 10800 3600 1209600 10800
Primary NS (mname)
dns1.uni-bonn.de
Admin Email (rname)
dnsadmin@uni-bonn.de
Serial
759573190
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s

Nameservers (NS)

dns2.uni-bonn.de
unibn-dns.uni-koeln.de
dns3.uni-bonn.de
dns1.uni-bonn.de

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:131.220.116.75 ip4:131.220.232.5 redirect=uni-bonn.de
📊 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

3 records
  • SPFv=spf1 ip4:131.220.116.75 ip4:131.220.232.5 redirect=uni-bonn.de
  • apple-domain-verification=kR0Q1YbppPHFdFo2
  • MS=DAAA22FB5D7301909907AA6A9B2F1A84EED62D17
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