Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
deuring-gebaeudetechnik.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 19:22:59 UTC · ↺ Refresh
MX Hostnames
- mail.deuring-gebaeudetechnik.de
MX Priorities
- mail.deuring-gebaeudetechnik.de: 10
A / AAAA Records
- 217.160.0.182 ↩ 217-160-0-182.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::210 ↩ 2001-08d8-100f-f000-0000-0000-0000-0210.elastic-ssl.ui-r.com
Mail Server IPs
- 188.245.145.219 ↩ mail.deuring-gebaeudetechnik.de
- 2a01:4f8:1c1e:e239::1 (no PTR)
SOA Record
Raw SOA
ns1028.ui-dns.biz hostmaster.1und1.com 2017060138 28800 7200 604800 600
Primary NS (mname)
ns1028.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060138
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1121.ui-dns.de
ns1045.ui-dns.org
ns1051.ui-dns.com
ns1028.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 ip4:188.245.145.219 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 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
1 record- SPFv=spf1 ip4:188.245.145.219 -all
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