Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
prof-burkhardt.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 10:38:33 UTC · ↺ Refresh
MX Hostnames
- profburkhardt-de01b.mail.protection.outlook.com
MX Priorities
- profburkhardt-de01b.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.218 ↩ 217-160-0-218.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2f1 ↩ 2001-08d8-100f-f000-0000-0000-0000-02f1.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1063.ui-dns.de hostmaster.kundenserver.de 2017072852 28800 7200 604800 300
Primary NS (mname)
ns1063.ui-dns.de
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017072852
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1063.ui-dns.biz
ns1063.ui-dns.org
ns1063.ui-dns.de
ns1063.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.perfora.net include:_spf-eu.ionos.com include:_spf.kundenserver.de include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 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
1 record- SPFv=spf1 include:_spf.perfora.net include:_spf-eu.ionos.com include:_spf.kundenserver.de include:spf.protection.outlook.com ~all
Full email verification for prof-burkhardt.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits