Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rudolf.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 03:03:42 UTC · ↺ Refresh
MX Hostnames
- rudolf-de.mail.protection.outlook.com
MX Priorities
- rudolf-de.mail.protection.outlook.com: 10
A / AAAA Records
- 88.99.101.251 ↩ redirect.checkdomain.de
- 2a01:4f8:221:11cd:9734:4c26:6044:5f33 ↩ redirect.checkdomain.de
Mail Server IPs
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.checkdomain.de sascha\.rahn.rudolf.de 2025051601 40000 7200 604800 300
Primary NS (mname)
ns.checkdomain.de
Admin Email (rname)
sascha\@rahn.rudolf.de
Serial
2025051601
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns2.checkdomain.de
ns.checkdomain.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:153.92.195.206 include:spf-westeu.emailsignatures365.com include:spf.protection.outlook.com include:spf.imc-hosting.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 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
7 records- MS=ms12086940
- SPFv=spf1 mx ip4:153.92.195.206 include:spf-westeu.emailsignatures365.com include:spf.protection.outlook.com include:spf.imc-hosting.com -all
- autodesk-domain-verification=sYXwG4L73N7PKgu3xZ_E
- swisssign-check=8y0gHdtRyCMW6zIBgTjiqWNGTkGxS8WBijBNNNWI5J
- google-site-verification=cm-aHRlyhsPL7Kc0Oh7R6bHnM0DTBMF9YD1Xo3pKtFY
- apple-domain-verification=VSUdlMHVmthBMuXT
- mindmanager-verification=31552e25b8d7bf4702e32bf8cc57d1758cd8cc5f3d674deb6a3fecd3db030012
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