Domain Overview
DNS: ✓ just now
Checker: ✓ just now
firemail.biz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-06-02 01:52:48 UTC · ↺ Refresh
MX Hostnames
- mails.firemail.biz
MX Priorities
- mails.firemail.biz: 0
A / AAAA Records
- 195.30.107.31 ↩ cp31.sp-server.net
Mail Server IPs
- 136.243.123.113 ↩ dedi6097.your-server.de
SOA Record
Raw SOA
ns5.ns35.de support.serverprofis.net 2026040801 3600 1800 1209600 86400
Primary NS (mname)
ns5.ns35.de
Admin Email (rname)
support@serverprofis.net
Serial
2026040801
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns7.ns35.de
ns8.ns35.de
ns5.ns35.de
ns6.ns35.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:136.243.123.113 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=none;pct=50;adkim=r;aspf=r;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
⚠ Policy applies to 50% 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
1 record- SPFv=spf1 a mx ip4:136.243.123.113 ~all
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