io-key.com

Valid Email Server
Domain Lookup › io-key.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
io-key.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 03:31:38 UTC · ↺ Refresh

MX Hostnames

  • securemail.fort-schritt.com
  • webmail.fort-schritt.com

MX Priorities

  • webmail.fort-schritt.com: 20
  • securemail.fort-schritt.com: 10

A / AAAA Records

  • 185.125.174.99 ↩ s24.hpress.de

Mail Server IPs

  • 217.7.195.230 ↩ webmail.fort-schritt.com
  • 195.4.164.108 ↩ securemail.fort-schritt.com

SOA Record

Raw SOA ns.udag.de hostmaster.united-domains.de 2024110222 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2024110222
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns.udag.de
ns.udag.org
ns.udag.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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

2 records
  • MS=ms88193603
  • SPFv=spf1 include:spf.protection.outlook.com -all
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