Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
luukku.com
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 22:48:16 UTC · ↺ Refresh
MX Hostnames
- mx.dka.mailcore.net
MX Priorities
- mx.dka.mailcore.net: 10
A / AAAA Records
- 167.99.248.199 ↩ m01.webswarm.fra1-03.do.fjordmail.no
Mail Server IPs
- 194.19.134.80 ↩ mx.dka.mailcore.net
- 194.19.134.70 ↩ mx.dka.mailcore.net
- 185.138.56.198 ↩ mx.dka.mailcore.net
- 185.138.56.208 (no PTR)
- 2001:2010:18:1::80 ↩ mx.dka.mailcore.net
- 2001:2010:18:1::70 ↩ mx.dka.mailcore.net
- 2a07:a80:1::198 ↩ mx.dka.mailcore.net
- 2a07:a80:1::208 ↩ mx.dka.mailcore.net
SOA Record
Raw SOA
sage.ns.cloudflare.com dns.cloudflare.com 2397351963 10000 2400 604800 1800
Primary NS (mname)
sage.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397351963
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
sage.ns.cloudflare.com
veronica.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.mailcore.net include:mail.zendesk.com include:sendgrid.net ip4:62.142.5.0/24 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s; fo=1; sp=reject; ruf=mailto:[email protected]; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=RRw-xEL7tcTiVzTLjpfG5JLJUqoTLJkA2KLjAONeiJs
- SPFv=spf1 include:spf.mailcore.net include:mail.zendesk.com include:sendgrid.net ip4:62.142.5.0/24 -all
Full email verification for luukku.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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