mcrt.de

Valid Email Server
Domain Lookup › mcrt.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
mcrt.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-04 18:28:46 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 217.160.0.1 ↩ 217-160-0-1.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2fc ↩ 2001-08d8-100f-f000-0000-0000-0000-02fc.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::8 ↩ mail-wa4pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::a ↩ mail-wa4pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns1055.ui-dns.org hostmaster.1und1.de 2017080238 28800 7200 604800 300
Primary NS (mname)
ns1055.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2017080238
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1055.ui-dns.org
ns1055.ui-dns.biz
ns1055.ui-dns.de
ns1055.ui-dns.com

SPF Record

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

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • atlassian-sending-domain-verification=88d4586c-8800-41dd-a3c5-ca2059c167cc
  • apple-domain-verification=Q3i4LWYiMbF7x2Pf
  • atlassian-domain-verification=6aHTqU7CNmSvQS8v8U0VbxBkekfnW4cwjaufRzXk1yzuu3XURkJeY3/AjlW/MZR8
  • SPFv=spf1 include:spf.protection.outlook.com -all
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