zrn-info.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
zrn-info.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 12:24:20 UTC · ↺ Refresh

MX Hostnames

  • zrninfo-de0i.mail.protection.outlook.com

MX Priorities

  • zrninfo-de0i.mail.protection.outlook.com: 0

A / AAAA Records

  • 88.99.103.15 ↩ www.centrithosting9.de

Mail Server IPs

  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.first-ns.de dns.hetzner.com 2025020807 14400 1800 604800 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2025020807
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

robotns2.second-ns.de
robotns3.second-ns.com
ns1.first-ns.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:116.202.246.123 ip4:93.240.200.194 ip4:130.180.31.70 ip4:83.236.201.74 ip4:5.147.244.178 ip4:212.60.212.110 ip4:212.60.209.58 -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
  • MS=ms88257934
  • google-site-verification=2b0P8Dk1FdfoQceAsMTl3jReUe4x13h07w99HSTHmGc
  • SPFv=spf1 include:spf.protection.outlook.com ip4:116.202.246.123 ip4:93.240.200.194 ip4:130.180.31.70 ip4:83.236.201.74 ip4:5.147.244.178 ip4:212.60.212.110 ip4:212.60.209.58 -all
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