Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bbs-holzminden.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 00:21:21 UTC · ↺ Refresh
MX Hostnames
- bbsholzminden-de0i.mail.protection.outlook.com
MX Priorities
- bbsholzminden-de0i.mail.protection.outlook.com: 0
A / AAAA Records
- 144.76.55.199 ↩ hoover-ssl.servers.verwaltungsportal.de
- 178.63.30.37 ↩ krabappel-ssl.servers.verwaltungsportal.de
- 2a01:4f8:fff3:7b::3
- 2a01:4f8:fff2:62::3
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.first-ns.de hostmaster.verwaltungsportal.de 2026010701 10800 3600 1209600 3600
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
hostmaster@verwaltungsportal.de
Serial
2026010701
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s; pct=100
~ 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: 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- SPFv=spf1 include:spf.protection.outlook.com -all
- apple-domain-verification=lI3olRe35OHp8WJf
- autodesk-domain-verification=4VD3y_iG4uGs7i3pQo0k
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