gremco.de

Valid Email Server
Domain Lookup › gremco.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gremco.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 05:35:08 UTC · ↺ Refresh

MX Hostnames

  • gremco-de.mail.protection.outlook.de

MX Priorities

  • gremco-de.mail.protection.outlook.de: 0

A / AAAA Records

  • 164.90.179.53 (no PTR)

Mail Server IPs

  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA keaton.ns.cloudflare.com dns.cloudflare.com 2399431525 10000 2400 604800 1800
Primary NS (mname)
keaton.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399431525
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

keaton.ns.cloudflare.com
ryleigh.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

3 records
  • v42rcjlhugkumemrrc0qtgjipa
  • SPFv=spf1 include:spf.protection.outlook.de -all
  • facebook-domain-verification=3ipmlr0r8jgwod7vetwoer27rj5yvt
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