ar.klueber.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ar.klueber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 01:18:52 UTC · ↺ Refresh

MX Hostnames

  • ar-klueber-com.mail.protection.outlook.com

MX Priorities

  • ar-klueber-com.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com

SOA Record

Raw SOA gg1.klueber.de root.gg1.klueber.de 2013041347 86400 7200 3500000 86400
Primary NS (mname)
gg1.klueber.de
Admin Email (rname)
root@gg1.klueber.de
Serial
2013041347
Refresh
86400s
Retry
7200s
Expire
3500000s
Minimum TTL
86400s

Nameservers (NS)

gg.klueber.com

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:200.178.17.52 include:mktomail.com include:14511.meuspf.com include:brkspf.br.klueber.com include:spf.protection.outlook.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

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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 a mx ip4:200.178.17.52 include:mktomail.com include:14511.meuspf.com include:brkspf.br.klueber.com include:spf.protection.outlook.com -all
Full email verification for ar.klueber.com

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

SPF / DKIM / DMARC Get 1,000 Free Credits