jcfibers.com

Valid Email Server
Domain Lookup › jcfibers.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
jcfibers.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 09:00:13 UTC · ↺ Refresh

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MX Hostnames

  • jcfibers-com.mail.protection.outlook.com

MX Priorities

  • jcfibers-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 35.209.156.99 ↩ 99.156.209.35.bc.googleusercontent.com

Mail Server IPs

  • 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com

SOA Record

Raw SOA brian.ns.cloudflare.com dns.cloudflare.com 2403332732 10000 2400 604800 1800
Primary NS (mname)
brian.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2403332732
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

brian.ns.cloudflare.com
robin.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 +a include:spf.protection.outlook.com include:jcfibers.com.spf.auto.dnssmarthost.net Include:spfa.cpmails.com include:mailgun.org -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; fo=1; ri=86400; rf=afrf; sp=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 1 found
default._domainkey
⚠ Public key (p=) missing in DKIM record for selector default.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • SPFv=spf1 +a include:spf.protection.outlook.com include:jcfibers.com.spf.auto.dnssmarthost.net Include:spfa.cpmails.com include:mailgun.org -all
  • google-site-verification=4Zd6kARA7Up08JluNUN9IWAvDGN3tVIr1pTdeqvz8nE
  • ppe-005c78be80ac3de3ec44cb9dcb0c4f19e5669853
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