Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ib-rieker.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 13:36:06 UTC · ↺ Refresh
MX Hostnames
- ibrieker-de0e.mail.protection.outlook.com
MX Priorities
- ibrieker-de0e.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.232 ↩ 217-160-0-232.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::233 ↩ 2001-08d8-100f-f000-0000-0000-0000-0233.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1108.ui-dns.biz hostmaster.1und1.de 2017013050 28800 7200 604800 300
Primary NS (mname)
ns1108.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2017013050
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1108.ui-dns.org
ns1108.ui-dns.biz
ns1108.ui-dns.com
ns1108.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:46.252.131.97/32 ip4:94.79.178.137/32 ip4:24.134.155.101/32 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.psm.knowbe4.com include:_spf.kenjo.io -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=30; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 30% of failing messages only
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
6 records- parsec-domain-verification=td_3AO3qrCV6NvR13MATE62jhKKMcT
- SPFv=spf1 ip4:46.252.131.97/32 ip4:94.79.178.137/32 ip4:24.134.155.101/32 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.psm.knowbe4.com include:_spf.kenjo.io -all
- wrike-verification=OTcxMjU5OmYyMTUxYTg4OTZlNGYwMDFhZTNlZDZhYzRlMzdmODcwM2VmOGFkNjBhNWE1ZmJlNmQ1OThiOGVmMDMzMWQyZWI=
- knowbe4-site-verification=6c32e0675fedf049c9bb6f96919faee1
- apple-domain-verification=7uNoWW5lP8ZnBZbN
- linkedin-site-verification=3041f70d-069e-425c-ab96-5e36ed9236e5
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