kalkuel.de

Valid Email Server
Domain Lookup › kalkuel.de

Domain Overview

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

Checked via [email protected] · 2026-04-02 04:50:55 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 185.175.196.52 (no PTR)
  • 2a00:1c98:60:1070::1:5d77:d255 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns3.stratoserver.net hostmaster.strato-rz.de 2020050871 86400 7200 604800 300
Primary NS (mname)
ns3.stratoserver.net
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050871
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns4.stratoserver.net
ns3.stratoserver.net

SPF Record

✓ Strict (-all)
v=spf1 a mx include:spf.tmes.trendmicro.eu include:spf.strold.io include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 6/10
✓ 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

6 records
  • google-site-verification=ufxas3xz-rf9Esl2RhHU0UB2KtiernoGikQpJt8AWH8
  • facebook-domain-verification=yj0ys2p1zcccribgqiw8ah8xm3pjuf
  • tmes=113eabc80c28288458e54be88a757a0a
  • MS=ms56986794
  • google-site-verification=iovvCYVfMmhc4e_kEPAuxpRAtMkdbXKOxk-Qoilz0rU
  • SPFv=spf1 a mx include:spf.tmes.trendmicro.eu include:spf.strold.io include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
Full email verification for kalkuel.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits