Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rolfhorn.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 10:05:35 UTC · ↺ Refresh
MX Hostnames
- rolfhorn-de.mail.protection.outlook.com
MX Priorities
- rolfhorn-de.mail.protection.outlook.com: 0
A / AAAA Records
- 78.47.126.143 ↩ testing.rolfhorn.de
Mail Server IPs
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026032800 600 1800 604800 3660
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026032800
Refresh
600s
Retry
1800s
Expire
604800s
Minimum TTL
3660s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:213.168.66.211 ip4:213.168.66.210 include:smtp-01.tool24.de include:spf.mailjet.com include:spf.emailsys.net include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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
6 records- cisco-ci-domain-verification=15273cba12d52351e68bde9860158450e12fcabd4173ffe9159071a2478176e0
- google-site-verification=VoVJk3SoNIagQYQd747fpi0fjfFS9TR57EGFLD9RsF4
- google-site-verification=hLia59KT_QtDkMEMXWJvo68qwjWKINFdF__K7pbec_o
- SPFv=spf1 a mx ip4:213.168.66.211 ip4:213.168.66.210 include:smtp-01.tool24.de include:spf.mailjet.com include:spf.emailsys.net include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
- xzMcGhQVL6+h2buSHrKMShdhEsfKDnulNm8I2UswELiVLgnU6w5TVMqhgq8pawslVNxKFCUArNSGWkV7DLC1zw==
- MS=ms55086693
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