Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fb-it-solutions.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 12:42:24 UTC · ↺ Refresh
MX Hostnames
- mail.fb-it-solutions.de
MX Priorities
- mail.fb-it-solutions.de: 10
A / AAAA Records
- 157.90.74.12 ↩ mail.fb-it-solutions.de
Mail Server IPs
- 157.90.74.12 ↩ mail.fb-it-solutions.de
SOA Record
Raw SOA
ns1.first-ns.de postmaster.fb-it-solutions.de 2025111900 86400 10800 3600000 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
postmaster@fb-it-solutions.de
Serial
2025111900
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:157.90.74.12 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:157.90.74.12 -all
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