mail.upb.de

Valid Email Server
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
mail.upb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 19:34:01 UTC · ↺ Refresh

MX Hostnames

  • mail.uni-paderborn.de

MX Priorities

  • mail.uni-paderborn.de: 5

A / AAAA Records

  • 131.234.142.9 ↩ mail.uni-paderborn.de
  • 2001:638:502:c000:b::9 ↩ mail.uni-paderborn.de
CNAME → mail.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

✓ Soft Fail (~all)
v=spf1 ip4:131.234.189.0/27 ip6:2001:638:502:C003::/64 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No 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

4 records
  • SPFv=spf1 ip4:131.234.189.0/27 ip6:2001:638:502:C003::/64 ~all
  • atlassian-domain-verification=NzrKew46SjAClUnQSu5Qax4dsd5JU58NfGIc9SmhF1ZBfo7gYc4kK7RvisQGlbJw
  • bw=7ztpvqybMy4Nab4ny9L1A6FmAhdSOxp6oep5yUyRqt06
  • MS=4EF4F8B6255EA7C9C102A9521289C168B7AD21D5
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