Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
inp-greifswald.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 21:07:13 UTC · ↺ Refresh
MX Hostnames
- a1701.mx.srv.dfn.de
- c1701.mx.srv.dfn.de
- b1701.mx.srv.dfn.de
MX Priorities
- c1701.mx.srv.dfn.de: 10
- b1701.mx.srv.dfn.de: 10
- a1701.mx.srv.dfn.de: 10
A / AAAA Records
- 188.40.132.90 ↩ zwoelf.jp-i.de
Mail Server IPs
- 194.95.238.110 ↩ c1701.mx.srv.dfn.de
- 194.95.234.110 ↩ b1701.mx.srv.dfn.de
- 194.95.232.110 ↩ a1701.mx.srv.dfn.de
SOA Record
Raw SOA
names-gwin.inp-greifswald.de netz-service.inp-greifswald.de 2026030415 10800 1800 604800 86400
Primary NS (mname)
names-gwin.inp-greifswald.de
Admin Email (rname)
netz-service@inp-greifswald.de
Serial
2026030415
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
names-gwin.inp-greifswald.de
dns-3.dfn.de
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.o170.mx.srv.dfn.de a:public.inp-greifswald.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s2
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- HARICA-93mkX5u9eBRN1ch9LmI
- SPFv=spf1 include:_spf.o170.mx.srv.dfn.de a:public.inp-greifswald.de -all
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