biosyn.de

Valid Email Server
Domain Lookup › biosyn.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
biosyn.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 12:54:54 UTC · ↺ Refresh

MX Hostnames

  • biosyn-de.mail.protection.outlook.com

MX Priorities

  • biosyn-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 92.205.188.165 ↩ 165.188.205.92.host.secureserver.net

Mail Server IPs

  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA ns57.domaincontrol.com dns.jomax.net 2026021800 28800 7200 604800 600
Primary NS (mname)
ns57.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026021800
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns58.domaincontrol.com
ns57.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:94.134.123.130 ip4:94.134.123.131 ip4:94.134.123.132 ip4:213.23.94.138 ip4:213.23.94.139 ip4:213.23.94.140 ip4:213.23.94.141 ip4:213.23.94.142 include:spf.protection.outlook.com include:spf.smtp2go.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

3 records
  • SPFv=spf1 a mx ip4:94.134.123.130 ip4:94.134.123.131 ip4:94.134.123.132 ip4:213.23.94.138 ip4:213.23.94.139 ip4:213.23.94.140 ip4:213.23.94.141 ip4:213.23.94.142 include:spf.protection.outlook.com include:spf.smtp2go.com -all
  • apple-domain-verification=dwuDVXCOPP8I4ytB
  • tresorit-verification=6CYqULbkoUwPEHFfmJ2ZAeOI9Mgu-ngnCfzW65umnOM
Full email verification for biosyn.de

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