carolus-thermen.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
carolus-thermen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 17:34:05 UTC · ↺ Refresh

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MX Hostnames

  • carolusthermen-de01i.mail.protection.outlook.com

MX Priorities

  • carolusthermen-de01i.mail.protection.outlook.com: 10

A / AAAA Records

  • 185.243.233.14 ↩ web4.expleto.de

Mail Server IPs

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

SOA Record

Raw SOA a.ns14.net do-not-reply.carolus-thermen.de 2026011305 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
do-not-reply@carolus-thermen.de
Serial
2026011305
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

c.ns14.net
d.ns14.net
a.ns14.net
b.ns14.net

SPF Record

✓ Strict (-all)
v=spf1 mx a ip4:213.196.237.114 ip4:185.243.232.53 ip4:94.130.132.98 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:spf.crsend.com include:spf-c.protection.bauer-kirch.de a:postfix.cisbox.com a:postfix2.cisbox.com a:owa.carolus-thermen.de -all
📊 DNS lookups: 9/10
✓ 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

2 records
  • MS=ms91528804
  • SPFv=spf1 mx a ip4:213.196.237.114 ip4:185.243.232.53 ip4:94.130.132.98 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:spf.crsend.com include:spf-c.protection.bauer-kirch.de a:postfix.cisbox.com a:postfix2.cisbox.com a:owa.carolus-thermen.de -all
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