Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
math.upb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 23:43:22 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 → math.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
weierstrass.math.uni-paderborn.de hostmaster.math.uni-paderborn.de 2026032001 10800 3600 604800 86400
Primary NS (mname)
weierstrass.math.uni-paderborn.de
Admin Email (rname)
hostmaster@math.uni-paderborn.de
Serial
2026032001
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
laurent.math.uni-paderborn.de
weierstrass.math.uni-paderborn.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:mail.uni-paderborn.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0; adkim=r; aspf=r; pct=100; rf=afrf; ri=84600; sp=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
2 records- SPFv=spf1 mx include:mail.uni-paderborn.de ~all
- google-site-verification=NIhjMvUKoBO2Cc9R0j-facyQzSgnsfIIFqkYMTt5pPU
Full email verification for math.upb.de
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