Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ludwig-bau.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 19:14:02 UTC · ↺ Refresh
MX Hostnames
- ludwigbau-de01e.mail.protection.outlook.com
MX Priorities
- ludwigbau-de01e.mail.protection.outlook.com: 10
A / AAAA Records
- 78.46.3.47 ↩ dedi847.your-server.de
- 2a01:4f8:d0a:3025::2 ↩ dedi847.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
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.fibcom.de do-not-reply.ludwig-bau.de 2026010806 43200 7200 1209600 86400
Primary NS (mname)
ns1.fibcom.de
Admin Email (rname)
do-not-reply@ludwig-bau.de
Serial
2026010806
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.fibcom.de
ns1.fibcom.de
ns3.fibcom.de
ns4.fibcom.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.mailjet.com a mx ip4:116.202.252.45 ip4:185.71.125.0/23 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
3 records- google-site-verification=dmLooU-nh7ImksEybWq-WMgpS2VkXlObwTQXNBrGMJs
- MS=ms65234633
- SPFv=spf1 include:spf.protection.outlook.com include:spf.mailjet.com a mx ip4:116.202.252.45 ip4:185.71.125.0/23 -all
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