Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cas-data.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 09:21:19 UTC · ↺ Refresh
MX Hostnames
- casdata-de0i.mail.protection.outlook.com
MX Priorities
- casdata-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.28 ↩ 217-160-0-28.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::29b ↩ 2001-08d8-100f-f000-0000-0000-0000-029b.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1057.ui-dns.biz hostmaster.1und1.com 2017060148 28800 7200 604800 600
Primary NS (mname)
ns1057.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060148
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1057.ui-dns.biz
ns1084.ui-dns.org
ns1043.ui-dns.com
ns1050.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.kundenserver.de include:spf.sendinblue.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- google-site-verification=H7aoe_tL3E9sCxgDDtoG3FEQCMpsO7qndGpxOHBa5fA
- google-site-verification=I73OvvHg3BC4WVHt2de6etsnPZOeJzPYJ75T7Pcl1QE
- Sendinblue-code:ead2981ccabb5a4bb5b0d5f7efd763e1
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.kundenserver.de include:spf.sendinblue.com -all
- sophos-domain-verification=1422122c468726fbd325ed1afbcdf9f36fd81933b31fb3f1994eadae9887696b
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