circle-gmbh.de

Valid Email Server
Domain Lookup › circle-gmbh.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
circle-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 15:04:03 UTC · ↺ Refresh

MX Hostnames

  • circlegmbh-de01e.mail.protection.outlook.com

MX Priorities

  • circlegmbh-de01e.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.106 ↩ 217-160-0-106.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1081.ui-dns.org hostmaster.kundenserver.de 2016110421 28800 7200 604800 300
Primary NS (mname)
ns1081.ui-dns.org
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2016110421
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1081.ui-dns.com
ns1081.ui-dns.de
ns1081.ui-dns.org
ns1081.ui-dns.biz

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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

3 records
  • 6e399a69cfd9747412e8468ae65de7b3aa0e312d36dd3138f7e488b779ce0c5
  • SPFv=spf1 a mx include:spf.protection.outlook.com ~all
  • MS=CAEEA6CB40340A8AF7A185ACE11BDD30FA362771
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