grey.de

Valid Email Server
Domain Lookup › grey.de

Domain Overview

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

Checked via [email protected] · 2026-03-25 06:38:27 UTC · ↺ Refresh

MX Hostnames

  • grey-de.mail.protection.outlook.com

MX Priorities

  • grey-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 159.25.16.123 (no PTR)

Mail Server IPs

  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA a.ns.nrw.net hostmaster.joker.com 2020011029 14400 3600 604800 300
Primary NS (mname)
a.ns.nrw.net
Admin Email (rname)
hostmaster@joker.com
Serial
2020011029
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

b.ns.nrw.net
c.ns.nrw.net
a.ns.nrw.net

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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
  • MS=ms80311607
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