Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
metall-zert.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-04 15:51:41 UTC · ↺ Refresh
MX Hostnames
- metallzert-de01e.mail.protection.outlook.com
MX Priorities
- metallzert-de01e.mail.protection.outlook.com: 0
A / AAAA Records
- 78.46.146.247 ↩ www393.your-server.de
- 2a01:4f8:d0a:52b8::2 ↩ www393.your-server.de
Mail Server IPs
- 52.101.103.140 ↩ mail-miypr02cu00204.inbound.protection.outlook.com
- 52.101.181.153 ↩ mail-wa4pr04cu00101.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.your-server.de postmaster.your-server.de 2026010900 86400 10800 3600000 7200
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
postmaster@your-server.de
Serial
2026010900
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
7200s
Nameservers (NS)
ns3.second-ns.de
ns.second-ns.com
ns1.your-server.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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