Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kofo.mpg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 09:47:45 UTC · ↺ Refresh
MX Hostnames
- c1233.mx.srv.dfn.de
- a1233.mx.srv.dfn.de
- b1233.mx.srv.dfn.de
MX Priorities
- b1233.mx.srv.dfn.de: 5
- c1233.mx.srv.dfn.de: 5
- a1233.mx.srv.dfn.de: 5
A / AAAA Records
- 134.76.31.205 ↩ site.cms.mpg.de
Mail Server IPs
- 194.95.234.101 ↩ b1233.mx.srv.dfn.de
- 194.95.238.101 ↩ c1233.mx.srv.dfn.de
- 194.95.232.101 ↩ a1233.mx.srv.dfn.de
SOA Record
Raw SOA
dsa.mpi-muelheim.mpg.de hostmaster.mpi-muelheim.mpg.de 2025102701 300 3600 1209600 43200
Primary NS (mname)
dsa.mpi-muelheim.mpg.de
Admin Email (rname)
hostmaster@mpi-muelheim.mpg.de
Serial
2025102701
Refresh
300s
Retry
3600s
Expire
1209600s
Minimum TTL
43200s
Nameservers (NS)
dns2.gwdg.de
dns3.gwdg.de
dsa.mpi-muelheim.mpg.de
dns1.gwdg.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.gwdg.de ip4:193.175.139.25 ip4:193.175.139.26 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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
3 records- duo_sso_verification=Fq7HeMzMUMt7iTS1E6NAtXIrQDN5JERzI6QLqBp1Q2rXnD1YwoYAKf24AZmzcCyV
- MS=ms58584951
- SPFv=spf1 mx include:spf.gwdg.de ip4:193.175.139.25 ip4:193.175.139.26 -all
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