Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gbf-ab.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 03:01:43 UTC · ↺ Refresh
MX Hostnames
- post.gbf-ab.de
- mail.gbf-ab.de
MX Priorities
- post.gbf-ab.de: 20
- mail.gbf-ab.de: 10
A / AAAA Records
- 217.160.0.143 ↩ 217-160-0-143.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
Mail Server IPs
- 217.5.176.154 (no PTR)
- 80.147.80.20 ↩ mail.gbf-ab.de
SOA Record
Raw SOA
ns1063.ui-dns.com hostmaster.1and1.com 2018070330 28800 7200 604800 300
Primary NS (mname)
ns1063.ui-dns.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2018070330
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1040.ui-dns.biz
ns1063.ui-dns.com
ns1045.ui-dns.de
ns1020.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 mx -all
- google-site-verification=ywCXf1nvVssIZ2XWzMSjvPQmJ8onRCw1V25ZARCeBtQ
- MS=ms79700780
- v=verifydomain MS=3601362
Full email verification for gbf-ab.de
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