Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sinstra.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 17:24:06 UTC · ↺ Refresh
MX Hostnames
- sinstra.de
MX Priorities
- sinstra.de: 10
A / AAAA Records
- 212.227.184.164 ↩ borth.org
Mail Server IPs
- 212.227.184.164 ↩ borth.org
SOA Record
Raw SOA
ns1084.ui-dns.de hostmaster.1und1.com 2017060126 28800 7200 604800 600
Primary NS (mname)
ns1084.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060126
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1099.ui-dns.com
ns1119.ui-dns.biz
ns1069.ui-dns.org
ns1084.ui-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:212.227.184.164 include:_spf.google.com include:_spf.perfora.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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 ip4:212.227.184.164 include:_spf.google.com include:_spf.perfora.net ~all
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