Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hfg-offenbach.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 12:18:14 UTC · ↺ Refresh
MX Hostnames
- mail03.hfg-offenbach.de
MX Priorities
- mail03.hfg-offenbach.de: 10
A / AAAA Records
- 49.12.115.22 ↩ static.22.115.12.49.clients.your-server.de
Mail Server IPs
- 195.37.12.38 ↩ mail03.hfg-offenbach.de
- 2001:638:312:5::2 ↩ mail03.hfg-offenbach.de
SOA Record
Raw SOA
dns-e-m-1.hfg-offenbach.de administrator.hfg-offenbach.de 923 3600 900 604800 3600
Primary NS (mname)
dns-e-m-1.hfg-offenbach.de
Admin Email (rname)
administrator@hfg-offenbach.de
Serial
923
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns-e-s-1.hfg-offenbach.de
dns-3.dfn.de
dns-1.dfn.de
dns-e-s-2.hfg-offenbach.de
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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
4 records- SPFv=spf1 mx -all
- HARICA-RvPXo6hnbWYsHqtx2eC
- google-site-verification=BqZHFUdrHdSRnaHOPL49jDbEP3fPfnNIpQKACG39EXI
- adobe-idp-site-verification=0dcda1f1b4efbc459c8c27ea49783ed2be62844443ca9e14219339707fc032d8
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