Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gustav-wolf.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 04:42:51 UTC · ↺ Refresh
MX Hostnames
- mx02.hornetsecurity.com
- mx01.hornetsecurity.com
- mx03.hornetsecurity.com
- mx04.hornetsecurity.com
- gustavwolf-de01e.mail.protection.outlook.com
MX Priorities
- mx03.hornetsecurity.com: 20
- mx04.hornetsecurity.com: 25
- gustavwolf-de01e.mail.protection.outlook.com: 50
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 15
A / AAAA Records
- 87.106.204.211
Mail Server IPs
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 94.100.132.8
- 94.100.136.8
SOA Record
Raw SOA
ns02.iok.net server-providing.iok.net 2025121104 10800 3600 604800 10800
Primary NS (mname)
ns02.iok.net
Admin Email (rname)
server-providing@iok.net
Serial
2025121104
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns03.iok.net
ns01.iok.net
ns02.iok.net
ns04.iok.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a:gate.gustav-wolf.de a:www.gustav-wolf.de include:_spfrelay.iok.net include:_spf.rexx-suite.com include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 7/10
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- SPFv=spf1 a:gate.gustav-wolf.de a:www.gustav-wolf.de include:_spfrelay.iok.net include:_spf.rexx-suite.com include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com -all
- _19ypq0hdsyg60lag6vul8hud7mvjwkc
- MS=ms88314826
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