Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
centberg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 02:27:27 UTC · ↺ Refresh
MX Hostnames
- centberg-de.mail.protection.outlook.com
MX Priorities
- centberg-de.mail.protection.outlook.com: 0
A / AAAA Records
- 185.5.12.48 ↩ web.homepagesysteme.de
Mail Server IPs
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1077.ui-dns.org hostmaster.1und1.de 2017061229 28800 7200 604800 300
Primary NS (mname)
ns1077.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2017061229
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1077.ui-dns.de
ns1077.ui-dns.com
ns1077.ui-dns.org
ns1077.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 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- SPFv=spf1 a mx include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
- MS=ms47743756
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