Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
pretax.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 00:45:13 UTC · ↺ Refresh
MX Hostnames
- pretax-de.mail.protection.outlook.com
MX Priorities
- pretax-de.mail.protection.outlook.com: 10
A / AAAA Records
- 89.31.143.93 (no PTR)
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.udag.de hostmaster.united-domains.de 2024121011 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2024121011
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.udag.org
ns.udag.net
ns.udag.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:spf.tds-sharedservices.de ip4:4.184.113.142 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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.protection.outlook.com include:spf.tds-sharedservices.de ip4:4.184.113.142 -all
- MS=ms18048735
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