Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ostra-dome.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 06:43:00 UTC · ↺ Refresh
MX Hostnames
- mail.first-class-concept.de
MX Priorities
- mail.first-class-concept.de: 10
A / AAAA Records
- 152.53.13.5 ↩ fcc-3.vth.one
Mail Server IPs
- 212.111.236.236 ↩ mail.first-class-concept.de
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2602281037 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2602281037
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
ns6.kasserver.com
ns5.kasserver.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:spf.kasserver.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- google-site-verification=jAbFMIPVoyAMZrJVaNJGM9d3pfs4182UhZ1aQ3aW3Pg
- SPFv=spf1 a mx include:spf.kasserver.com ~all
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