Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ddp-gruppe.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 10:53:29 UTC · ↺ Refresh
MX Hostnames
- ddpgruppe-de0i.mail.protection.outlook.com
MX Priorities
- ddpgruppe-de0i.mail.protection.outlook.com: 0
A / AAAA Records
- 79.133.58.247 (no PTR)
Mail Server IPs
- 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
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.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
SOA Record
Raw SOA
ns1034.ui-dns.biz hostmaster.1und1.com 2017060207 28800 7200 604800 600
Primary NS (mname)
ns1034.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060207
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1034.ui-dns.biz
ns1027.ui-dns.org
ns1033.ui-dns.de
ns1082.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:hlb-ddp.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; fo=1; pct=100; adkim=r; aspf=r
✓ Reject — strongest protection
📋 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
2 records- _telesec-domain-validation=D01EA86620D441925AF2B9A859F9D2604C19DEAD789623169E35C7A24A73C00E
- SPFv=spf1 include:hlb-ddp.de -all
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