Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dupp.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 20:58:59 UTC · ↺ Refresh
MX Hostnames
- dupp-de.mail.protection.outlook.com
MX Priorities
- dupp-de.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.114 ↩ 217-160-0-114.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::297 ↩ 2001-08d8-100f-f000-0000-0000-0000-0297.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1062.ui-dns.biz hostmaster.kundenserver.de 2017053259 28800 7200 604800 300
Primary NS (mname)
ns1062.ui-dns.biz
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017053259
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1062.ui-dns.com
ns1062.ui-dns.org
ns1062.ui-dns.biz
ns1062.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.mailjet.com include:spf.protection.outlook.com include:_spf.kundenserver.de include:_spf.perfora.net include:eu.hosting-webspace.io -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- MS=C8600BDC980F75F4F268F18B40040F428F16DC2E
- uqp6dh81osqcnognr66lv271e6
- SPFv=spf1 include:spf.mailjet.com include:spf.protection.outlook.com include:_spf.kundenserver.de include:_spf.perfora.net include:eu.hosting-webspace.io -all
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