Domain Overview
DNS: ✓ 23h ago
Checker: ✓ 23h ago
ruefa-deutschland.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-11-10 15:09:17 UTC · ↺ Refresh
MX Hostnames
- ruefadeutschland-de01c.mail.protection.outlook.com
MX Priorities
- ruefadeutschland-de01c.mail.protection.outlook.com: 0
A / AAAA Records
- 168.119.53.125 ↩ static.125.53.119.168.clients.your-server.de
Mail Server IPs
- 52.101.209.31 ↩ mail-cpjpr05cu00207.inbound.protection.outlook.com
- 52.101.73.145 ↩ mail-am6pr02cu00301.inbound.protection.outlook.com
- 52.101.209.153 ↩ mail-cpjpr04cu00101.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca48::a ↩ mail-miypr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::8 ↩ mail-zrxpr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca48::10 ↩ mail-miypr05cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
a.dns-i.net hostmaster.insyst.de 2025011553 14400 3600 1209600 1800
Primary NS (mname)
a.dns-i.net
Admin Email (rname)
hostmaster@insyst.de
Serial
2025011553
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
1800s
Nameservers (NS)
c.dns-i.net
b.dns-i.net
a.dns-i.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.salesforce.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.salesforce.com -all
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