Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
leitnerbau.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 12:54:58 UTC · ↺ Refresh
MX Hostnames
- leitnerbau-de.mail.protection.outlook.com
- mail.leitnerbau.de
MX Priorities
- mail.leitnerbau.de: 10
- leitnerbau-de.mail.protection.outlook.com: 20
A / AAAA Records
- 81.169.145.86 ↩ w86.rzone.de
- 2a01:238:20a:202:1086::
Mail Server IPs
- 62.156.188.234 ↩ mail.leitnerbau.de
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
docks09.rzone.de hostmaster.strato-rz.de 2020050801 86400 7200 604800 300
Primary NS (mname)
docks09.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050801
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades13.rzone.de
docks09.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf-de.emailsignatures365.com include:spf.protection.outlook.com mx a:mail.leitnerbau.de -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
s1._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- apple-domain-verification=M61x4jWxDfpayP7E
- MS=ms88087254
- SPFv=spf1 include:spf-de.emailsignatures365.com include:spf.protection.outlook.com mx a:mail.leitnerbau.de -all
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