Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sicp.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 21:52:57 UTC · ↺ Refresh
MX Hostnames
- mail.uni-paderborn.de
MX Priorities
- mail.uni-paderborn.de: 100
A / AAAA Records
- 131.234.196.39 ↩ www1.uni-paderborn.de
- 2001:638:502:c036::39 ↩ www1.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 767258784 10800 3600 604800 3600
Primary NS (mname)
dius.uni-paderborn.de
Admin Email (rname)
hostmaster@uni-paderborn.de
Serial
767258784
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dius.uni-paderborn.de
dufu.uni-paderborn.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:mail.uni-paderborn.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
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- SPFv=spf1 include:mail.uni-paderborn.de ~all
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