Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blazing.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 15:32:19 UTC · ↺ Refresh
MX Hostnames
- mx.nt-do.de
- mail.blazing.de
MX Priorities
- mail.blazing.de: 10
- mx.nt-do.de: 15
A / AAAA Records
- 213.172.105.106 ↩ ns1.blazing.de
- 2001:1640:3::3 ↩ v6.blazing.de
Mail Server IPs
- 213.172.105.107 ↩ mail.blazing.de
- 2001:1640:3::2 ↩ mail.blazing.de
- 217.199.199.2 ↩ mx.nt-do.de
- 2a00:4d80::143 ↩ mx.nt-do.de
SOA Record
Raw SOA
ns1.blazing.de tspier.blazing.de 2013040435 14400 3600 604800 38400
Primary NS (mname)
ns1.blazing.de
Admin Email (rname)
tspier@blazing.de
Serial
2013040435
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
38400s
Nameservers (NS)
ns3.waaf.net
ns2.blazing.de
ns1.blazing.de
ns1.cyconet.org
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:213.172.105.104/29 ip4:85.220.190.246/32 ip4:217.199.199.2/32 ip4:85.220.152.20/32 ip6:2001:1640:3::/64 ip6:2a00:4d80::143/128 ip6:2001:1640:11a::2/128 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1;pct=50
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 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
2 records- SPFv=spf1 a mx ip4:213.172.105.104/29 ip4:85.220.190.246/32 ip4:217.199.199.2/32 ip4:85.220.152.20/32 ip6:2001:1640:3::/64 ip6:2a00:4d80::143/128 ip6:2001:1640:11a::2/128 -all
- google-site-verification=rEHggjOptGpMAEJMuEEtFkYnFaDrENWKRgdfVx8kOmw
Full email verification for blazing.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits