tjbc.com

Valid Email Server
Domain Lookup › tjbc.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tjbc.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 20:43:34 UTC · ↺ Refresh

MX Hostnames

  • us-smtp-inbound-2.mimecast.com
  • us-smtp-inbound-1.mimecast.com

MX Priorities

  • us-smtp-inbound-1.mimecast.com: 10
  • us-smtp-inbound-2.mimecast.com: 10

A / AAAA Records

  • 165.227.248.223 (no PTR)

Mail Server IPs

  • 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com

SOA Record

Raw SOA ns77.worldnic.com namehost.worldnic.com 125111814 10800 3600 604800 3600
Primary NS (mname)
ns77.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125111814
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns77.worldnic.com
ns78.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:_netblocks.mimecast.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

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

5 records
  • google-site-verification=mtZhKi9yYwZby1HitPb28LjhJm_5yDSfrASPa6Dhz7g
  • docusign=1fec9a2d-6294-445a-a0d6-57cd957631e2
  • SPFv=spf1 include:_netblocks.mimecast.com -all
  • wACo9bcikmZLDjOoI0kMrc9sxa59Dm/Ho3N4plWKHRKX/XPUOxAS9mj5itwR9TeOKKlKa7H9bldznu95B2Qc1A==
  • stripe-verification=792B0764910392007F0A825ECE40D3F313627C2EAEB2F959DD50741FA235BC1B
Full email verification for tjbc.com

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