Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
niedax.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 02:54:30 UTC · ↺ Refresh
MX Hostnames
- niedax-de.mail.protection.outlook.com
MX Priorities
- niedax-de.mail.protection.outlook.com: 0
A / AAAA Records
- 188.40.218.245 ↩ dedi7051.your-server.de
- 2a01:4f8:d0a:6753::2 ↩ dedi7051.your-server.de
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1047.ui-dns.biz hostmaster.1und1.de 2016110723 28800 7200 604800 300
Primary NS (mname)
ns1047.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2016110723
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1047.ui-dns.de
ns1047.ui-dns.org
ns1047.ui-dns.com
ns1047.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:217.7.101.20 ip4:188.40.218.245 include:spf.sosafe.de include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
6 records- apple-domain-verification=6F8mmF9rkZLTU1IN
- QuoVadis=69dff003-f22d-4b25-8d5b-27c0ec26b583
- atlassian-domain-verification=kPhlFeTcBEQ/397c60SCoVM/bS0HEJtugH0y69WomBb4yIQTbm7KgABO5x5T8BS8
- SPFv=spf1 mx ip4:217.7.101.20 ip4:188.40.218.245 include:spf.sosafe.de include:spf.protection.outlook.com -all
- google-site-verification=XPS-dqXG0bf8edRp-z7l0XEgarRvvh5CA7TCxAznHpI
- 6g8f035q8dk9hcr07broq8k7o
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