Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firemail.de
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 18:26:17 UTC · ↺ Refresh
MX Hostnames
- mx1.firemail.de
MX Priorities
- mx1.firemail.de: 10
A / AAAA Records
- 188.40.70.221 ↩ mail.firemail.de
Mail Server IPs
- 178.63.251.174 ↩ emg.emailn.de
SOA Record
Raw SOA
ns.nbiserv.de hostmaster.nbiserv.de 2025080483 172800 7200 2419200 7200
Primary NS (mname)
ns.nbiserv.de
Admin Email (rname)
hostmaster@nbiserv.de
Serial
2025080483
Refresh
172800s
Retry
7200s
Expire
2419200s
Minimum TTL
7200s
Nameservers (NS)
ns1.nbiserv.de
ns2.nbiserv.de
ns3.nbiserv.de
ns4.nbiserv.de
SPF Record
✓ Strict (-all)
v=spf1 a:mail.firemail.de a:firemail.de a:firemail.at a:firemail.eu ip4:188.40.70.221 a:mail.emailn.de -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=80; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; adkim=r; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
⚠ Policy applies to 80% of failing messages only
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a:mail.firemail.de a:firemail.de a:firemail.at a:firemail.eu ip4:188.40.70.221 a:mail.emailn.de -all
- google-site-verification=-TZOCSjjh6ZVg0Qy2fV6IxlLxPKXj926U_4ggksfBkw
Full email verification for firemail.de
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