highko.de

Valid Email Server
Domain Lookup › highko.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
highko.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 11:07:04 UTC · ↺ Refresh

MX Hostnames

  • s3.estec.net

MX Priorities

  • s3.estec.net: 1

A / AAAA Records

  • 91.216.90.32 ↩ www.hostedshops.de

Mail Server IPs

  • 138.201.54.246 ↩ s2.estec.net
  • 2a01:4f8:172:fdf::2 ↩ s2.estec.net

SOA Record

Raw SOA a.ns.highko.de dns.estec.net 1 3600 600 7200 600
Primary NS (mname)
a.ns.highko.de
Admin Email (rname)
dns@estec.net
Serial
1
Refresh
3600s
Retry
600s
Expire
7200s
Minimum TTL
600s

Nameservers (NS)

a.ns.highko.de
b.ns.highko.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:138.201.54.246/32 ip6:2a01:4f8:172:fdf::2/128 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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 ip4:138.201.54.246/32 ip6:2a01:4f8:172:fdf::2/128 -all
Full email verification for highko.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits