Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ifbau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 06:55:58 UTC · ↺ Refresh
MX Hostnames
- mx-l2.bisping.de
- mx-m1.bisping.de
- mf-lbn1.bisping.de
MX Priorities
- mx-l2.bisping.de: 30
- mf-lbn1.bisping.de: 10
- mx-m1.bisping.de: 20
A / AAAA Records
- 157.90.98.78 ↩ akbw.de
Mail Server IPs
- 62.91.92.21 ↩ mx-l2.bisping.de
- 62.91.2.55 ↩ mf-lbn1.bisping.de
- 91.99.178.218 ↩ wms-m1.bisping.net
SOA Record
Raw SOA
ns.frank-und-freunde.de postmaster.fuf.de 2026012801 21600 3600 691200 86400
Primary NS (mname)
ns.frank-und-freunde.de
Admin Email (rname)
postmaster@fuf.de
Serial
2026012801
Refresh
21600s
Retry
3600s
Expire
691200s
Minimum TTL
86400s
Nameservers (NS)
ns2.frank-und-freunde.de
ns.frank-und-freunde.de
SPF Record
✓ Strict (-all)
v=spf1 a:mail.akbw.de include:spf.protection.outlook.com include:_spf_mx-bb.bisping.de ip4:157.90.98.78 include:spf.crsend.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=10; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a:mail.akbw.de include:spf.protection.outlook.com include:_spf_mx-bb.bisping.de ip4:157.90.98.78 include:spf.crsend.com -all
- qA/rILRXHPIXjWmyZEMd80cuhAjO/beuOeJDdb7wcHyLbanQdwkU7mioSxD9qnk9Wdt7UTVKYjFudu5/WpGmXQ==
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