Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
haertha.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 20:14:03 UTC · ↺ Refresh
MX Hostnames
- haertha-de.mail.protection.outlook.com
MX Priorities
- haertha-de.mail.protection.outlook.com: 10
A / AAAA Records
- 195.201.109.138 ↩ static.138.109.201.195.clients.your-server.de
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:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
dns11.netcologne.de hostmaster.netcologne.de 2025090807 10800 3600 3600000 3600
Primary NS (mname)
dns11.netcologne.de
Admin Email (rname)
hostmaster@netcologne.de
Serial
2025090807
Refresh
10800s
Retry
3600s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
dns13.netcologne.de
dns11.netcologne.de
dns12.netcologne.de
dns14.netcologne.de
SPF Record
✓ Strict (-all)
v=spf1 a ip4:20.113.19.140/32 ip4:80.237.130.140/32 ip6:2a01:488:42::/48 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:27037506.spf04.hubspotemail.net include:mailgun.org -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- atlassian-domain-verification=DwaXWu7F9OgbFN3CxUVkbaq6RqzrK3ZvuQeLrM0TCu5t8COPxCCYh1oSfQx/QBd4
- google-site-verification=u0L9WwuCcpgl9yfdgUFjtS_0D5zCRhpbGKyg5dWo3xM
- MS=ms34455325
- SPFv=spf1 a ip4:20.113.19.140/32 ip4:80.237.130.140/32 ip6:2a01:488:42::/48 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:27037506.spf04.hubspotemail.net include:mailgun.org -all
- apple-domain-verification=EMu9qDPpLB7QflhV
- zUnGQ56VOiSUljoxecqhtu+i9dAkP5bqdXt5ZrGWisOTKMNYubv4nag0lHuimNiLFbXW6UWlOx/RdIYxQr7UQA==
- atlassian-sending-domain-verification=f6b58428-aeb4-4712-aac1-ea35404d6fb0
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