Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sixt-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 19:50:13 UTC · ↺ Refresh
MX Hostnames
- mail.sixt-gmbh.de
- sixtgmbh-de01b.mail.protection.outlook.com
MX Priorities
- mail.sixt-gmbh.de: 50
- sixtgmbh-de01b.mail.protection.outlook.com: 10
A / AAAA Records
- 212.114.33.5 ↩ ger18-5.wwwserver.net
Mail Server IPs
- 93.240.118.70 ↩ mail.sixt-gmbh.de
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.is-fun.net hostmaster.is-fun.com 2021081837 86400 7200 604800 86400
Primary NS (mname)
ns1.is-fun.net
Admin Email (rname)
hostmaster@is-fun.com
Serial
2021081837
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.is-fun.net
ns2.is-fun.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf-de.emailsignatures365.com include:spf.protection.outlook.com ip4:18.197.41.25 ip4:18.196.224.233 ip4:93.240.118.70 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;aspf=s;adkim=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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
1 record- SPFv=spf1 a mx include:spf-de.emailsignatures365.com include:spf.protection.outlook.com ip4:18.197.41.25 ip4:18.196.224.233 ip4:93.240.118.70 -all
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