maixsys.de

Valid Email Server
Domain Lookup › maixsys.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
maixsys.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 06:00:01 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • maixsys-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.48 ↩ 217-160-0-48.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2bc ↩ 2001-08d8-100f-f000-0000-0000-0000-02bc.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns1050.ui-dns.de hostmaster.1und1.de 2017031571 28800 7200 604800 300
Primary NS (mname)
ns1050.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2017031571
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1050.ui-dns.com
ns1050.ui-dns.de
ns1050.ui-dns.org
ns1050.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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