jean-lb.com

Valid Email Server
Domain Lookup › jean-lb.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
jean-lb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 12:44:11 UTC · ↺ Refresh

MX Hostnames

  • jeanlb-com01b.mail.protection.outlook.com

MX Priorities

  • jeanlb-com01b.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.67.223.247 (no PTR)
  • 104.21.25.76 (no PTR)
  • 2606:4700:3036::ac43:dff7
  • 2606:4700:3031::6815:194c

Mail Server IPs

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

SOA Record

Raw SOA isabel.ns.cloudflare.com dns.cloudflare.com 2397062998 10000 2400 604800 1800
Primary NS (mname)
isabel.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397062998
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

maxim.ns.cloudflare.com
isabel.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.perfora.net include:_spf.kundenserver.de 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

✗ 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

3 records
  • v=verifydomain MS=5370525
  • apple-domain-verification=dSTkCbeDwgqpyo4D
  • SPFv=spf1 include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com ~all
Full email verification for jean-lb.com

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

SPF / DKIM / DMARC Get 1,000 Free Credits