Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
physik.upb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 17:07:30 UTC · ↺ Refresh
MX Hostnames
- mail.uni-paderborn.de
MX Priorities
- mail.uni-paderborn.de: 10
A / AAAA Records
- 131.234.196.27 ↩ nw.uni-paderborn.de
- 2001:638:502:c036::27 ↩ nw.uni-paderborn.de
CNAME → physik.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
No SOA record found.
Nameservers (NS)
No nameservers found.
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
Full email verification for physik.upb.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits