Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ukb.uni-bonn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 17:15:55 UTC · ↺ Refresh
MX Hostnames
- mailgw02.ukbonn.de
- mailgw01.ukbonn.de
MX Priorities
- mailgw02.ukbonn.de: 10
- mailgw01.ukbonn.de: 10
A / AAAA Records
- 131.220.26.47 ↩ ukb.uni-bonn.de
Mail Server IPs
- 131.220.26.181 ↩ mailgw02.ukbonn.de
- 131.220.26.180 ↩ mailgw01.ukbonn.de
SOA Record
Raw SOA
dns5.uniklinik-bonn.de postmaster.ukb.uni-bonn.de 2006030046 10800 3600 604800 86400
Primary NS (mname)
dns5.uniklinik-bonn.de
Admin Email (rname)
postmaster@ukb.uni-bonn.de
Serial
2006030046
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dns3.uniklinik-bonn.de
dns5.uniklinik-bonn.de
dns1.uni-bonn.de
dns3.uni-bonn.de
dns2.uni-bonn.de
dns2.ukbonn.de
dns1.ukbonn.de
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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- apple-domain-verification=vihJpIToWRkG5KNe
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