ac-k.de

Valid Email Server
Domain Lookup › ac-k.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ac-k.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 10:25:18 UTC · ↺ Refresh

MX Hostnames

  • ack-de0e.mail.eo.outlook.com

MX Priorities

  • ack-de0e.mail.eo.outlook.com: 10

A / AAAA Records

  • 185.5.12.48 ↩ web.homepagesysteme.de

Mail Server IPs

  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns2.ac-k.de info.ac-k.de 2026031115 10800 3600 1209600 10800
Primary NS (mname)
ns2.ac-k.de
Admin Email (rname)
info@ac-k.de
Serial
2026031115
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s

Nameservers (NS)

ns1.ac-k.de
ns2.ac-k.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.vema-eg.de include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ 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 include:spf.protection.outlook.com include:spf.vema-eg.de include:spf-de.emailsignatures365.com -all
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