Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
wiwi.upb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:42:06 UTC · ↺ Refresh
MX Hostnames
- mail.uni-paderborn.de
MX Priorities
- mail.uni-paderborn.de: 5
A / AAAA Records
- 131.234.196.27 ↩ nw.uni-paderborn.de
- 2001:638:502:c036::27 ↩ nw.uni-paderborn.de
CNAME → wiwi.uni-paderborn.de
Mail Server IPs
- 131.234.142.9 ↩ mail.uni-paderborn.de
- 2001:638:502:c000:b::9 ↩ mail.uni-paderborn.de
SOA Record
Raw SOA
dius.uni-paderborn.de hostmaster.uni-paderborn.de 769245578 10800 3600 604800 86400
Primary NS (mname)
dius.uni-paderborn.de
Admin Email (rname)
hostmaster@uni-paderborn.de
Serial
769245578
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dius.uni-paderborn.de
dufu.uni-paderborn.de
dns-1.dfn.de
SPF Record
✓ Strict (-all)
v=spf1 include:mail.uni-paderborn.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:mail.uni-paderborn.de -all
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