Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
imb-burg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 22:07:36 UTC · ↺ Refresh
MX Hostnames
- mx-01-a.dcl.srs-sys.de
- mx-02-a.dcl.srs-sys.de
MX Priorities
- mx-01-a.dcl.srs-sys.de: 10
- mx-02-a.dcl.srs-sys.de: 10
A / AAAA Records
- 217.160.0.31 ↩ 217-160-0-31.elastic-ssl.ui-r.com
Mail Server IPs
- 212.99.217.165 ↩ mx-01-a.dcl.srs-sys.de
- 212.99.217.166 ↩ mx-02-a.dcl.srs-sys.de
SOA Record
Raw SOA
ns1081.ui-dns.org hostmaster.1und1.de 2017071007 28800 7200 604800 300
Primary NS (mname)
ns1081.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2017071007
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1081.ui-dns.com
ns1081.ui-dns.biz
ns1081.ui-dns.org
ns1081.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.srs-sys.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:[email protected]; sp=none; rf=afrf; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
1 record- SPFv=spf1 include:_spf.srs-sys.de -all
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