Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blankenburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 00:58:22 UTC · ↺ Refresh
MX Hostnames
- mxtls.expurgate.net
MX Priorities
- mxtls.expurgate.net: 10
A / AAAA Records
- 217.160.0.3
- 2001:8d8:100f:f000::2ea
Mail Server IPs
- 194.145.224.121 ↩ mxtls.expurgate.net
- 194.145.224.124 ↩ mxtls.expurgate.net
- 195.190.135.125 ↩ mxtls.expurgate.net
- 195.190.135.122 ↩ mxtls.expurgate.net
- 194.145.224.123 ↩ mxtls.expurgate.net
- 194.145.224.122 ↩ mxtls.expurgate.net
- 195.190.135.123 ↩ mxtls.expurgate.net
- 195.190.135.121 ↩ mxtls.expurgate.net
- 195.190.135.120 ↩ mxtls.expurgate.net
- 194.145.224.125 ↩ mxtls.expurgate.net
- 194.145.224.120
- 195.190.135.124
SOA Record
Raw SOA
ns1020.ui-dns.biz hostmaster.1und1.de 2016110332 28800 7200 604800 300
Primary NS (mname)
ns1020.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2016110332
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1020.ui-dns.de
ns1020.ui-dns.com
ns1020.ui-dns.biz
ns1020.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:212.184.216.52 ip4:52.157.149.216 ip4:195.243.249.172 ip4:62.55.182.68 include:_spf.expurgate.net include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- nordpass-domain-verification=39ad1425f3824b328376ecabfd879ed3
- SPFv=spf1 mx ip4:212.184.216.52 ip4:52.157.149.216 ip4:195.243.249.172 ip4:62.55.182.68 include:_spf.expurgate.net include:spf.protection.outlook.com -all
- apple-domain-verification=v18lY84ka0A3qyn6
- apple-domain-verification=Q98zmS36pyN0SdbO
- MS=990CCCD06B2CCE92F88D518343BA04979112B401
Full email verification for blankenburg.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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