Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mfx-systems.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 05:15:48 UTC · ↺ Refresh
MX Hostnames
- mfxsystems-de0i.mail.protection.outlook.com
MX Priorities
- mfxsystems-de0i.mail.protection.outlook.com: 5
A / AAAA Records
- 88.99.101.251 ↩ redirect.checkdomain.de
- 2a01:4f8:221:11cd:9734:4c26:6044:5f33 ↩ redirect.checkdomain.de
Mail Server IPs
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.checkdomain.de hostmaster.checkdomain.de 2024032401 40000 7200 604800 300
Primary NS (mname)
ns.checkdomain.de
Admin Email (rname)
hostmaster@checkdomain.de
Serial
2024032401
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns.checkdomain.de
ns2.checkdomain.de
SPF Record
✓ Strict (-all)
v=spf1 a:mail.m-f.tech include:spf.protection.outlook.com include:_spf.atlassian.net include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
2 records- MS=ms79854939
- SPFv=spf1 a:mail.m-f.tech include:spf.protection.outlook.com include:_spf.atlassian.net include:spf-de.emailsignatures365.com -all
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